117157312 has 14 divisors (see below), whose sum is σ = 232484168. Its totient is φ = 58578624.

The previous prime is 117157309. The next prime is 117157349. The reversal of 117157312 is 213751711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 915228 + ... + 915355.

It is an arithmetic number, because the mean of its divisors is an integer number (16606012).

Almost surely, 2^117157312 is an apocalyptic number.

It is an amenable number.

117157312 is a deficient number, since it is larger than the sum of its proper divisors (115326856).

117157312 is an equidigital number, since it uses as much as digits as its factorization.

117157312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830595 (or 1830585 counting only the distinct ones).

The product of its digits is 1470, while the sum is 28.

The square root of 117157312 is about 10823.9231335039. The cubic root of 117157312 is about 489.3164312621.

The spelling of 117157312 in words is "one hundred seventeen million, one hundred fifty-seven thousand, three hundred twelve".