85100931 has 12 divisors (see below), whose sum is σ = 123113952. Its totient is φ = 56646096.

The previous prime is 85100927. The next prime is 85101007. The reversal of 85100931 is 13900158.

It is not a de Polignac number, because 85100931 - 2² = 85100927 is a prime.

It is a super-2 number, since 2×85100931² = 14484336914133522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85100895 and 85100904.

It is not an unprimeable number, because it can be changed into a prime (85100231) 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, 891 + ... + 13076.

It is an arithmetic number, because the mean of its divisors is an integer number (10259496).

Almost surely, 2^85100931 is an apocalyptic number.

85100931 is a deficient number, since it is larger than the sum of its proper divisors (38013021).

85100931 is a wasteful number, since it uses less digits than its factorization.

85100931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14650 (or 14647 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 85100931 is about 9225.0165853509. The cubic root of 85100931 is about 439.8569283457.

The spelling of 85100931 in words is "eighty-five million, one hundred thousand, nine hundred thirty-one".