104985531 has 32 divisors (see below), whose sum is σ = 179512320. Its totient is φ = 59398272.

The previous prime is 104985497. The next prime is 104985541. The reversal of 104985531 is 135589401.

104985531 is a `hidden beast` number, since 1 + 0 + 49 + 85 + 531 = 666.

It is not a de Polignac number, because 104985531 - 2⁶ = 104985467 is a prime.

It is a super-2 number, since 2×104985531² = 22043923438703922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (104985541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16771 + ... + 22163.

It is an arithmetic number, because the mean of its divisors is an integer number (5609760).

Almost surely, 2^104985531 is an apocalyptic number.

104985531 is a deficient number, since it is larger than the sum of its proper divisors (74526789).

104985531 is a wasteful number, since it uses less digits than its factorization.

104985531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5512 (or 5506 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 104985531 is about 10246.2447267279. The cubic root of 104985531 is about 471.7477270952.

The spelling of 104985531 in words is "one hundred four million, nine hundred eighty-five thousand, five hundred thirty-one".