| Nominal | 21185 |
| Cardinal | twenty-one thousand one hundred eighty-five |
Cardinal twenty-one thousand one hundred eighty-five | |
| Ordinal | 21,185th |
| Number of digits | 5 |
| Sum of digits | 17 |
| Product of digits | 80 |
| Number parity | Odd |
| Prime factorization | 5 x 19 x 223 |
| Prime factors | 5, 19, 223 |
| Number of distinct prime factors ω(n) | 3 |
| Total number of prime factors Ω(n) | 3 |
| Sum of prime factors | 247 |
| Product of prime factors | 21185 |
| Is 21185 a prime number? | No |
| Is 21185 a semiprime number? | No |
| Is 21185 a Chen prime number? | No |
| Is 21185 a Mersenne prime number? | No |
| Is 21185 a Catalan number? | No |
| Is 21185 a Fibonacci number? | No |
| Is 21185 a Idoneal number? | No |
| Square of 21185 (n2) | 448804225 |
| Cube of 21185 (n3) | 9507917506625 |
| Square root of 21185 | 145.55067845943 |
| Natural Logarithm (ln) of 21185 | 9.9610486630607 |
| Decimal Logarithm (log) of 21185 | 4.326028468337 |
| Sine of 21185 | -0.9460230668776 |
| Cosecant of 21185 | -1.057056677593 |
| Cosine of 21185 | -0.32409930104137 |
| Secant of 21185 | -3.0854741024954 |
| Tangent of 21185 | 2.9189296732141 |
| Cotangent of 21185 | 0.34259133036901 |
| The spelling of 21185 in words is "twenty-one thousand one hundred eighty-five", meaning that: |
| 21185 is not an aban number (as it contains the letter a) |
| 21185 is not an eban number (as it contains the letter e) |
| 21185 is not an iban number (as it contains the letter i) |
| 21185 is not an oban number (as it contains the letter o) |
| 21185 is not a tban number (as it contains the letter t) |
| 21185 is not an uban number (as it contains the letter u) |
| Bengali numerals | ২১১৮৫ |
| Eastern Arabic numerals | ٢١٬١٨٥ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓂭𓆼𓍢𓎍𓏾 |
| Khmer numerals | ២១១៨៥ |
| Japanese numerals | 二万千百八十五 |
| Roman numerals | n/a |
| Thai numerals | ๒๑๑๘๕ |
| Arabic | واحد و عشرون ألف و مائة و خمسة و ثمانون |
| Croatian | dvadeset i jedna tisuća sto osamdeset i pet |
| Czech | dvacet jedna tisíc sto osmdesát pět |
| Danish | en og tyve tusinde et hundrede fem og firs |
| Dutch | éénentwintigduizend honderdvijfentachtig |
| Estonian | akpe blaeve vɔ ɖekɛ alafa ɖeka blaenyi vɔ atɔ̃ |
| Faroese | tjúgoeitt tusin og eitthundraðogáttatifimm |
| Filipino | dalawáng pû’t isáng libó’t isáng daán at walóng pû’t limá |
| Finnish | kaksikymmentäyksituhattasatakahdeksankymmentäviisi |
| French | vingt et un mille cent quatre-vingt-cinq |
| Greek | είκοσι μία χίλιάδες εκατόν ογδόντα πέντε |
| German | einundzwanzigtausendeinhundertfünfundachtzig |
| Hebrew | עשרים ואחד אלף מאה שמונים וחמש |
| Hindi | इक्कीस हज़ार एक सौ पचासी |
| Hungarian | huszonegyezerszáznyolcvanöt |
| Icelandic | tuttugu og eitt þúsund og eitthundrað og áttatíu og fimm |
| Indonesian | dua puluh satu ribu seratus delapan puluh lima |
| Italian | ventunomilacentoottantacinque |
| Japanese | 二万千百八十五 |
| Korean | 이만 천백팔십오 |
| Latvian | divdesmit viens tūkstoši simt astoņdesmit pieci |
| Lithuanian | dvidešimt vienas tūkstantis šimtas aštuoniasdešimt penki |
| Norwegian | tjueett tusen hundre og åttifem |
| Persian | بیست و یک هزار و صد و هشتاد و پنج |
| Polish | dwadzieścia jeden tysięcy sto osiemdziesiąt pięć |
| Portuguese | vinte e um mil cento e oitenta e cinco |
| Romanian | douăzeci şi una mii una sută optzeci şi cinci |
| Russian | двадцать одна тысяча сто восемьдесят пять |
| Serbian | двадесет и једна хиљада сто осамдесет и пет |
| Slovak | dvadsaťjedna tisíc jednasto osemdesiatpäť |
| Slovene | dvaset ena tisuću sto osemdeset pet |
| Spanish | veintiún mil ciento ochenta y cinco |
| Swahili | elfu ishirini na moja, mia moja na themanini na tano |
| Swedish | tjugoentusenenhundraåttiofem |
| Thai | สองหมื่นหนึ่งพันหนึ่งร้อยแปดสิบห้า |
| Turkish | yirmi bir bin yüz seksen beş |
| Ukrainian | двадцять одна тисяча сто вісімдесят пʼять |
| Vietnamese | hai mươi mốt nghìn một trăm tám mươi lăm |
| Number 21185 reversed | 58112 | |
| Unicode Character | U+52C1 | 勁 |
| Unix Timestamp | Thu, 01 Jan 1970 05:53:05 +0000 | |