115255131 has 4 divisors (see below), whose sum is σ = 153673512. Its totient is φ = 76836752.

The previous prime is 115255123. The next prime is 115255171. The reversal of 115255131 is 131552511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115255131 - 2³ = 115255123 is a prime.

It is a super-2 number, since 2×115255131² = 26567490443654322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115255171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19209186 + ... + 19209191.

It is an arithmetic number, because the mean of its divisors is an integer number (38418378).

Almost surely, 2^115255131 is an apocalyptic number.

115255131 is a deficient number, since it is larger than the sum of its proper divisors (38418381).

115255131 is an equidigital number, since it uses as much as digits as its factorization.

115255131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38418380.

The product of its digits is 750, while the sum is 24.

The square root of 115255131 is about 10735.6942486269. The cubic root of 115255131 is about 486.6537671463.

The spelling of 115255131 in words is "one hundred fifteen million, two hundred fifty-five thousand, one hundred thirty-one".