115415172 has 48 divisors (see below), whose sum is σ = 304147200. Its totient is φ = 37838880.

The previous prime is 115415143. The next prime is 115415191. The reversal of 115415172 is 271514511.

115415172 is a `hidden beast` number, since 1 + 1 + 541 + 51 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2172 + ... + 15347.

It is an arithmetic number, because the mean of its divisors is an integer number (6336400).

Almost surely, 2^115415172 is an apocalyptic number.

115415172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115415172 is an abundant number, since it is smaller than the sum of its proper divisors (188732028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115415172 is a wasteful number, since it uses less digits than its factorization.

115415172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17593 (or 17585 counting only the distinct ones).

The product of its digits is 1400, while the sum is 27.

The square root of 115415172 is about 10743.1453494775. The cubic root of 115415172 is about 486.8789155713.

Adding to 115415172 its reverse (271514511), we get a palindrome (386929683).

The spelling of 115415172 in words is "one hundred fifteen million, four hundred fifteen thousand, one hundred seventy-two".