63081 has 12 divisors (see below), whose sum is σ = 93808. Its totient is φ = 40824.

The previous prime is 63079. The next prime is 63097. The reversal of 63081 is 18036.

It is not a de Polignac number, because 63081 - 2¹ = 63079 is a prime.

It is a super-2 number, since 2×63081² = 7958425122, which contains 22 as substring.

It is a Duffinian number.

63081 is a modest number, since divided by 81 gives 63 as remainder.

It is not an unprimeable number, because it can be changed into a prime (63031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 306 + ... + 468.

2⁶³⁰⁸¹ is an apocalyptic number.

It is an amenable number.

63081 is a deficient number, since it is larger than the sum of its proper divisors (30727).

63081 is a wasteful number, since it uses less digits than its factorization.

63081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 63081 is about 251.1593119914. The cubic root of 63081 is about 39.8076178780.

The spelling of 63081 in words is "sixty-three thousand, eighty-one".