117155712 has 32 divisors (see below), whose sum is σ = 311195880. Its totient is φ = 39051776.

The previous prime is 117155711. The next prime is 117155723. The reversal of 117155712 is 217551711.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 117155712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117155711) 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, 152163 + ... + 152930.

Almost surely, 2^117155712 is an apocalyptic number.

117155712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

117155712 is an abundant number, since it is smaller than the sum of its proper divisors (194040168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117155712 is an equidigital number, since it uses as much as digits as its factorization.

117155712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305110 (or 305098 counting only the distinct ones).

The product of its digits is 2450, while the sum is 30.

The square root of 117155712 is about 10823.8492228966. The cubic root of 117155712 is about 489.3142037447.

The spelling of 117155712 in words is "one hundred seventeen million, one hundred fifty-five thousand, seven hundred twelve".