115133031 has 24 divisors (see below), whose sum is σ = 180887616. Its totient is φ = 70142400.

The previous prime is 115133023. The next prime is 115133063. The reversal of 115133031 is 130331511.

It is not a de Polignac number, because 115133031 - 2³ = 115133023 is a prime.

It is a super-2 number, since 2×115133031² = 26511229654493922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 115132995 and 115133013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115133021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6946 + ... + 16688.

It is an arithmetic number, because the mean of its divisors is an integer number (7536984).

Almost surely, 2^115133031 is an apocalyptic number.

115133031 is a deficient number, since it is larger than the sum of its proper divisors (65754585).

115133031 is a wasteful number, since it uses less digits than its factorization.

115133031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9863 (or 9860 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 18.

The square root of 115133031 is about 10730.0061043785. The cubic root of 115133031 is about 486.4818545673.

Adding to 115133031 its reverse (130331511), we get a palindrome (245464542).

The spelling of 115133031 in words is "one hundred fifteen million, one hundred thirty-three thousand, thirty-one".