117331520 has 56 divisors (see below), whose sum is σ = 285926784. Its totient is φ = 45835776.

The previous prime is 117331519. The next prime is 117331537. The reversal of 117331520 is 25133711.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9497 + ... + 18023.

Almost surely, 2^117331520 is an apocalyptic number.

117331520 is a gapful number since it is divisible by the number (10) 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 117331520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142963392).

117331520 is an abundant number, since it is smaller than the sum of its proper divisors (168595264).

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

117331520 is an equidigital number, since it uses as much as digits as its factorization.

117331520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8587 (or 8577 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 117331520 is about 10831.9675036440. The cubic root of 117331520 is about 489.5588421409.

The spelling of 117331520 in words is "one hundred seventeen million, three hundred thirty-one thousand, five hundred twenty".