117018972 has 48 divisors (see below), whose sum is σ = 346725120. Its totient is φ = 33433776.

The previous prime is 117018959. The next prime is 117018977. The reversal of 117018972 is 279810711.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117018977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76638 + ... + 78149.

It is an arithmetic number, because the mean of its divisors is an integer number (7223440).

Almost surely, 2^117018972 is an apocalyptic number.

117018972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

117018972 is an abundant number, since it is smaller than the sum of its proper divisors (229706148).

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

117018972 is a wasteful number, since it uses less digits than its factorization.

117018972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154807 (or 154799 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 36.

The square root of 117018972 is about 10817.5307718536. The cubic root of 117018972 is about 489.1237595595.

The spelling of 117018972 in words is "one hundred seventeen million, eighteen thousand, nine hundred seventy-two".