113931025 has 36 divisors (see below), whose sum is σ = 161750932. Its totient is φ = 79119360.

The previous prime is 113931023. The next prime is 113931043. The reversal of 113931025 is 520139311.

It can be written as a sum of positive squares in 18 ways, for example, as 92140801 + 21790224 = 9599^2 + 4668^2 .

It is not a de Polignac number, because 113931025 - 2¹ = 113931023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113931023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 93319 + ... + 94531.

Almost surely, 2^113931025 is an apocalyptic number.

It is an amenable number.

113931025 is a deficient number, since it is larger than the sum of its proper divisors (47819907).

113931025 is a wasteful number, since it uses less digits than its factorization.

113931025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270 (or 1248 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 113931025 is about 10673.8477129852. The cubic root of 113931025 is about 484.7829474795.

The spelling of 113931025 in words is "one hundred thirteen million, nine hundred thirty-one thousand, twenty-five".