117992915 has 8 divisors (see below), whose sum is σ = 141691680. Its totient is φ = 94327552.

The previous prime is 117992911. The next prime is 117992923. The reversal of 117992915 is 519299711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 117992915 - 2² = 117992911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117992911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227 + ... + 15363.

It is an arithmetic number, because the mean of its divisors is an integer number (17711460).

Almost surely, 2^117992915 is an apocalyptic number.

117992915 is a deficient number, since it is larger than the sum of its proper divisors (23698765).

117992915 is a wasteful number, since it uses less digits than its factorization.

117992915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16701.

The product of its digits is 51030, while the sum is 44.

The square root of 117992915 is about 10862.4543727465. The cubic root of 117992915 is about 490.4769962919.

The spelling of 117992915 in words is "one hundred seventeen million, nine hundred ninety-two thousand, nine hundred fifteen".