117257636 has 48 divisors (see below), whose sum is σ = 223171200. Its totient is φ = 53706240.

The previous prime is 117257633. The next prime is 117257641. The reversal of 117257636 is 636752711.

It is a self number, because there is not a number n which added to its sum of digits gives 117257636.

It is not an unprimeable number, because it can be changed into a prime (117257633) 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, 719291 + ... + 719453.

It is an arithmetic number, because the mean of its divisors is an integer number (4649400).

Almost surely, 2^117257636 is an apocalyptic number.

It is an amenable number.

117257636 is a deficient number, since it is larger than the sum of its proper divisors (105913564).

117257636 is a wasteful number, since it uses less digits than its factorization.

117257636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 402 counting only the distinct ones).

The product of its digits is 52920, while the sum is 38.

The square root of 117257636 is about 10828.5565058322. The cubic root of 117257636 is about 489.4560616877.

The spelling of 117257636 in words is "one hundred seventeen million, two hundred fifty-seven thousand, six hundred thirty-six".