117556572 has 96 divisors (see below), whose sum is σ = 334835200. Its totient is φ = 31352832.

The previous prime is 117556561. The next prime is 117556601. The reversal of 117556572 is 275655711.

It is a self number, because there is not a number n which added to its sum of digits gives 117556572.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116004 + ... + 117012.

Almost surely, 2^117556572 is an apocalyptic number.

117556572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117556572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167417600).

117556572 is an abundant number, since it is smaller than the sum of its proper divisors (217278628).

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

117556572 is a wasteful number, since it uses less digits than its factorization.

117556572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115 (or 1113 counting only the distinct ones).

The product of its digits is 73500, while the sum is 39.

The square root of 117556572 is about 10842.3508520985. The cubic root of 117556572 is about 489.8716476258.

The spelling of 117556572 in words is "one hundred seventeen million, five hundred fifty-six thousand, five hundred seventy-two".