117185992 has 64 divisors (see below), whose sum is σ = 275322240. Its totient is φ = 45427200.

The previous prime is 117185969. The next prime is 117186011. The reversal of 117185992 is 299581711.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172758 + ... + 173434.

It is an arithmetic number, because the mean of its divisors is an integer number (4301910).

Almost surely, 2^117185992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117185992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137661120).

117185992 is an abundant number, since it is smaller than the sum of its proper divisors (158136248).

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

117185992 is a wasteful number, since it uses less digits than its factorization.

117185992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982 (or 978 counting only the distinct ones).

The product of its digits is 45360, while the sum is 43.

The square root of 117185992 is about 10825.2478955449. The cubic root of 117185992 is about 489.3563560721.

The spelling of 117185992 in words is "one hundred seventeen million, one hundred eighty-five thousand, nine hundred ninety-two".