117708231 has 4 divisors (see below), whose sum is σ = 156944312. Its totient is φ = 78472152.

The previous prime is 117708179. The next prime is 117708233. The reversal of 117708231 is 132807711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132807711 = 3 ⋅44269237.

It is not a de Polignac number, because 117708231 - 2⁶ = 117708167 is a prime.

It is a super-2 number, since 2×117708231² = 27710455290298722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117708233) 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, 19618036 + ... + 19618041.

It is an arithmetic number, because the mean of its divisors is an integer number (39236078).

Almost surely, 2^117708231 is an apocalyptic number.

117708231 is a deficient number, since it is larger than the sum of its proper divisors (39236081).

117708231 is an equidigital number, since it uses as much as digits as its factorization.

117708231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39236080.

The product of its (nonzero) digits is 2352, while the sum is 30.

The square root of 117708231 is about 10849.3424224697. The cubic root of 117708231 is about 490.0822172188.

The spelling of 117708231 in words is "one hundred seventeen million, seven hundred eight thousand, two hundred thirty-one".