117868565 has 16 divisors (see below), whose sum is σ = 151227648. Its totient is φ = 87879936.

The previous prime is 117868561. The next prime is 117868579. The reversal of 117868565 is 565868711.

It is a happy number.

It is not a de Polignac number, because 117868565 - 2² = 117868561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117868561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2024 + ... + 15486.

It is an arithmetic number, because the mean of its divisors is an integer number (9451728).

Almost surely, 2^117868565 is an apocalyptic number.

It is an amenable number.

117868565 is a deficient number, since it is larger than the sum of its proper divisors (33359083).

117868565 is a wasteful number, since it uses less digits than its factorization.

117868565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13588.

The product of its digits is 403200, while the sum is 47.

The square root of 117868565 is about 10856.7290193686. The cubic root of 117868565 is about 490.3046349467.

The spelling of 117868565 in words is "one hundred seventeen million, eight hundred sixty-eight thousand, five hundred sixty-five".