117921536 has 36 divisors (see below), whose sum is σ = 236082000. Its totient is φ = 58785792.

The previous prime is 117921527. The next prime is 117921563. The reversal of 117921536 is 635129711.

It is a junction number, because it is equal to n+sod(n) for n = 117921496 and 117921505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152960 + ... + 153728.

Almost surely, 2^117921536 is an apocalyptic number.

117921536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

117921536 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

117921536 is an frugal number, since it uses more digits than its factorization.

117921536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384 (or 1370 counting only the distinct ones).

The product of its digits is 11340, while the sum is 35.

The square root of 117921536 is about 10859.1682922773. The cubic root of 117921536 is about 490.3780727830.

The spelling of 117921536 in words is "one hundred seventeen million, nine hundred twenty-one thousand, five hundred thirty-six".