118517172 has 24 divisors (see below), whose sum is σ = 276729600. Its totient is φ = 39478656.

The previous prime is 118517167. The next prime is 118517173. The reversal of 118517172 is 271715811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118517173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23229 + ... + 27867.

It is an arithmetic number, because the mean of its divisors is an integer number (11530400).

Almost surely, 2^118517172 is an apocalyptic number.

118517172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

118517172 is an abundant number, since it is smaller than the sum of its proper divisors (158212428).

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

118517172 is a wasteful number, since it uses less digits than its factorization.

118517172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6775 (or 6773 counting only the distinct ones).

The product of its digits is 3920, while the sum is 33.

The square root of 118517172 is about 10886.5592360488. The cubic root of 118517172 is about 491.2023395804.

The spelling of 118517172 in words is "one hundred eighteen million, five hundred seventeen thousand, one hundred seventy-two".