117111520 has 48 divisors (see below), whose sum is σ = 279453888. Its totient is φ = 46374400.

The previous prime is 117111517. The next prime is 117111551. The reversal of 117111520 is 25111711.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12537 + ... + 19783.

It is an arithmetic number, because the mean of its divisors is an integer number (5821956).

Almost surely, 2^117111520 is an apocalyptic number.

117111520 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 117111520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139726944).

117111520 is an abundant number, since it is smaller than the sum of its proper divisors (162342368).

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

117111520 is a wasteful number, since it uses less digits than its factorization.

117111520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7363 (or 7355 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 19.

The square root of 117111520 is about 10821.8076124093. The cubic root of 117111520 is about 489.2526716965.

It can be divided in two parts, 11711 and 1520, that added together give a palindrome (13231).

The spelling of 117111520 in words is "one hundred seventeen million, one hundred eleven thousand, five hundred twenty".