117915264 has 192 divisors, whose sum is σ = 374250240. Its totient is φ = 36827136.

The previous prime is 117915241. The next prime is 117915271. The reversal of 117915264 is 462519711.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 528657 + ... + 528879.

It is an arithmetic number, because the mean of its divisors is an integer number (1949220).

Almost surely, 2^117915264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117915264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187125120).

117915264 is an abundant number, since it is smaller than the sum of its proper divisors (256334976).

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

117915264 is an equidigital number, since it uses as much as digits as its factorization.

117915264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 245 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 117915264 is about 10858.8795002063. The cubic root of 117915264 is about 490.3693785673.

The spelling of 117915264 in words is "one hundred seventeen million, nine hundred fifteen thousand, two hundred sixty-four".