117391508 has 12 divisors (see below), whose sum is σ = 221237940. Its totient is φ = 54180672.

The previous prime is 117391501. The next prime is 117391523. The reversal of 117391508 is 805193711.

It can be written as a sum of positive squares in 2 ways, for example, as 14531344 + 102860164 = 3812^2 + 10142^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117391501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1128713 + ... + 1128816.

It is an arithmetic number, because the mean of its divisors is an integer number (18436495).

Almost surely, 2^117391508 is an apocalyptic number.

It is an amenable number.

117391508 is a deficient number, since it is larger than the sum of its proper divisors (103846432).

117391508 is a wasteful number, since it uses less digits than its factorization.

117391508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257546 (or 2257544 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 35.

The square root of 117391508 is about 10834.7361758374. The cubic root of 117391508 is about 489.6422600560.

The spelling of 117391508 in words is "one hundred seventeen million, three hundred ninety-one thousand, five hundred eight".