117568915 has 4 divisors (see below), whose sum is σ = 141082704. Its totient is φ = 94055128.

The previous prime is 117568907. The next prime is 117568921. The reversal of 117568915 is 519865711.

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 117568915 - 2³ = 117568907 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11756887 + ... + 11756896.

It is an arithmetic number, because the mean of its divisors is an integer number (35270676).

Almost surely, 2^117568915 is an apocalyptic number.

117568915 is a deficient number, since it is larger than the sum of its proper divisors (23513789).

117568915 is an equidigital number, since it uses as much as digits as its factorization.

117568915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23513788.

The product of its digits is 75600, while the sum is 43.

The square root of 117568915 is about 10842.9200402844. The cubic root of 117568915 is about 489.8887919222. Note that the first 3 decimals are identical.

The spelling of 117568915 in words is "one hundred seventeen million, five hundred sixty-eight thousand, nine hundred fifteen".