Names of 1985
| Nominal | 1985 |
| Cardinal | one thousand nine hundred eighty-five |
| Ordinal | 1,985th |
| This number as US currency | one thousand nine hundred eighty-five dollars |
| Is 1985 an odd number? | 1985 is an odd number |
| Is 1985 an even number? | 1985 is NOT an even number |
| Is 1985 a palindrome? | 1985 is NOT a palindrome number |
| Is 1985 a triangle number? | 1985 is NOT a triangle number |
1985 in other Bases
| Base 2 (Binary) | 111110000012 |
| Base 3 (Ternary) | 22011123 |
| Base 4 (Quaternary) | 1330014 |
| Base 5 (Quinary) | 304205 |
| Base 6 (Senary) | 131056 |
| Base 8 (Octal) | 37018 |
| Base 12 (Duodecimal) | 119512 |
| Base 16 (Hexadecimal) | 7C116 |
| Base 20 (Vigesimal) | 4J520 |
Primes and Factors tests for 1985
| Is 1985 a Prime Number? | 1985 is NOT a prime |
| Is 1985 a perfect number? | 1985 is NOT a perfect number |
| Is 1985 a Mersenne Prime? | 1985 is NOT a Mersenne prime |
| Is 1985 a Fermat Prime? | 1985 is NOT a Fermat prime |
| Is 1985 a Fibonacci Prime? | 1985 is NOT a Fibonacci prime |
| Is 1985 a Partition Prime? | 1985 is NOT a Partition prime |
| Is 1985 a Pell Prime? | 1985 is NOT a Pell prime |
| Prime Factors | Prime factors of 1985 |
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1985 in other Numerals
| 1985 in Roman Numeral | MCMLXXXV |
| 1985 in Chinese Numeral | 壹仟玖佰捌拾伍 |
| 1985 in Egyptian Numeral | 𓆼𓍪𓎍𓏾 |
| 1985 in Babylonian Numeral |   |
Roots and stuff for 1985
| Is 1985 a square number? | 1985 is NOT a square number |
| Is 1985 a cube number? | 1985 is NOT a cube number |
| Square root of the number 1985 | 44.553338819891 |
| Cube root of the number 1985 | 12.567633397882 |
Recreational math for 1985
| Number 1985 reversed | 5891 |
| Sum of the digits | 23 |
| No of digits | 4 |