| Nominal | 21157 |
| Cardinal | twenty-one thousand one hundred fifty-seven |
Cardinal twenty-one thousand one hundred fifty-seven | |
| Ordinal | 21,157th |
| Number of digits | 5 |
| Sum of digits | 16 |
| Product of digits | 70 |
| Number parity | Odd |
| Prime factorization | 21157 |
| Prime factors | 21157 |
| Number of distinct prime factors ω(n) | 1 |
| Total number of prime factors Ω(n) | 1 |
| Sum of prime factors | 21157 |
| Product of prime factors | 21157 |
| Is 21157 a prime number? | Yes |
| Is 21157 a semiprime number? | No |
| Is 21157 a Chen prime number? | No |
| Is 21157 a Mersenne prime number? | No |
| Is 21157 a Catalan number? | No |
| Is 21157 a Fibonacci number? | No |
| Is 21157 a Idoneal number? | No |
| Square of 21157 (n2) | 447618649 |
| Cube of 21157 (n3) | 9470267756893 |
| Square root of 21157 | 145.45446022725 |
| Natural Logarithm (ln) of 21157 | 9.9597260989833 |
| Decimal Logarithm (log) of 21157 | 4.3254540860563 |
| Sine of 21157 | 0.99844773048297 |
| Cosecant of 21157 | 1.0015546828038 |
| Cosine of 21157 | 0.055696763760642 |
| Secant of 21157 | 17.954364535389 |
| Tangent of 21157 | 17.926494522623 |
| Cotangent of 21157 | 0.055783354561486 |
| The spelling of 21157 in words is "twenty-one thousand one hundred fifty-seven", meaning that: |
| 21157 is not an aban number (as it contains the letter a) |
| 21157 is not an eban number (as it contains the letter e) |
| 21157 is not an iban number (as it contains the letter i) |
| 21157 is not an oban number (as it contains the letter o) |
| 21157 is not a tban number (as it contains the letter t) |
| 21157 is not an uban number (as it contains the letter u) |
| Bengali numerals | ২১১৫৭ |
| Eastern Arabic numerals | ٢١٬١٥٧ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓂭𓆼𓍢𓎊𓐀 |
| Khmer numerals | ២១១៥៧ |
| Japanese numerals | 二万千百五十七 |
| Roman numerals | n/a |
| Thai numerals | ๒๑๑๕๗ |
| Arabic | واحد و عشرون ألف و مائة و سبعة و خمسون |
| Croatian | dvadeset i jedna tisuća sto pedeset i sedam |
| Czech | dvacet jedna tisíc sto padesát sedm |
| Danish | en og tyve tusinde et hundrede syv og halvtreds |
| Dutch | éénentwintigduizend honderdzevenenvijftig |
| Estonian | akpe blaeve vɔ ɖekɛ alafa ɖeka blaatɔ̃ vɔ adre |
| Faroese | tjúgoeitt tusin og eitthundraðogfimmtisjey |
| Filipino | dalawáng pû’t isáng libó’t isáng daán at limáng pû’t pitó |
| Finnish | kaksikymmentäyksituhattasataviisikymmentäseitsemän |
| French | vingt et un mille cent cinquante-sept |
| Greek | είκοσι μία χίλιάδες εκατόν πενήντα επτά |
| German | einundzwanzigtausendeinhundertsiebenundfünfzig |
| Hebrew | עשרים ואחד אלף מאה חמישים ושבע |
| Hindi | इक्कीस हज़ार एक सौ सत्तावन |
| Hungarian | huszonegyezerszázötvenhét |
| Icelandic | tuttugu og eitt þúsund og eitthundrað og fimmtíu og sjó |
| Indonesian | dua puluh satu ribu seratus lima puluh tujuh |
| Italian | ventunomilacentocinquantasette |
| Japanese | 二万千百五十七 |
| Korean | 이만 천백오십칠 |
| Latvian | divdesmit viens tūkstoši simt piecdesmit septiņi |
| Lithuanian | dvidešimt vienas tūkstantis šimtas penkiasdešimt septyni |
| Norwegian | tjueett tusen hundre og femtisju |
| Persian | بیست و یک هزار و صد و پنجاه و هفت |
| Polish | dwadzieścia jeden tysięcy sto pięćdziesiąt siedem |
| Portuguese | vinte e um mil cento e cinquenta e sete |
| Romanian | douăzeci şi una mii una sută cincizeci şi şapte |
| Russian | двадцать одна тысяча сто пятьдесят семь |
| Serbian | двадесет и једна хиљада сто педесет и седам |
| Slovak | dvadsaťjedna tisíc jednasto päťdesiatsedem |
| Slovene | dvaset ena tisuću sto petdeset sedem |
| Spanish | veintiún mil ciento cincuenta y siete |
| Swahili | elfu ishirini na moja, mia moja na hamsini na saba |
| Swedish | tjugoentusenenhundrafemtiosju |
| Thai | สองหมื่นหนึ่งพันหนึ่งร้อยห้าสิบเจ็ด |
| Turkish | yirmi bir bin yüz elli yedi |
| Ukrainian | двадцять одна тисяча сто пʼятдесят сім |
| Vietnamese | hai mươi mốt nghìn một trăm năm mươi bảy |
| Number 21157 reversed | 75112 | |
| Unicode Character | U+52A5 | 劥 |
| Unix Timestamp | Thu, 01 Jan 1970 05:52:37 +0000 | |