117815236 has 48 divisors (see below), whose sum is σ = 272184192. Its totient is φ = 43200000.

The previous prime is 117815231. The next prime is 117815251. The reversal of 117815236 is 632518711.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (117815231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6015 + ... + 16486.

It is an arithmetic number, because the mean of its divisors is an integer number (5670504).

Almost surely, 2^117815236 is an apocalyptic number.

It is an amenable number.

117815236 is an abundant number, since it is smaller than the sum of its proper divisors (154368956).

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

117815236 is a wasteful number, since it uses less digits than its factorization.

117815236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22540 (or 22538 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The square root of 117815236 is about 10854.2727070956. The cubic root of 117815236 is about 490.2306785578.

It can be divided in two parts, 11781 and 5236, that multiplied together give a square (61685316 = 7854²).

The spelling of 117815236 in words is "one hundred seventeen million, eight hundred fifteen thousand, two hundred thirty-six".