117372915 has 32 divisors (see below), whose sum is σ = 227635200. Its totient is φ = 56907360.

The previous prime is 117372911. The next prime is 117372961. The reversal of 117372915 is 519273711.

It is not a de Polignac number, because 117372915 - 2² = 117372911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117372915.

It is not an unprimeable number, because it can be changed into a prime (117372911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38035 + ... + 41004.

It is an arithmetic number, because the mean of its divisors is an integer number (7113600).

Almost surely, 2^117372915 is an apocalyptic number.

117372915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117372915 is a deficient number, since it is larger than the sum of its proper divisors (110262285).

117372915 is a wasteful number, since it uses less digits than its factorization.

117372915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79064 (or 79058 counting only the distinct ones).

The product of its digits is 13230, while the sum is 36.

The square root of 117372915 is about 10833.8781145073. The cubic root of 117372915 is about 489.6164081030.

It can be divided in two parts, 1173 and 72915, that added together give a cube (74088 = 42³).

The spelling of 117372915 in words is "one hundred seventeen million, three hundred seventy-two thousand, nine hundred fifteen".