117181080 has 160 divisors (see below), whose sum is σ = 401187600. Its totient is φ = 30668544.

The previous prime is 117181073. The next prime is 117181081. The reversal of 117181080 is 80181711.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117181081) 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 39 ways as a sum of consecutive naturals, for example, 190854 + ... + 191466.

Almost surely, 2^117181080 is an apocalyptic number.

117181080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117181080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200593800).

117181080 is an abundant number, since it is smaller than the sum of its proper divisors (284006520).

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

117181080 is a wasteful number, since it uses less digits than its factorization.

117181080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695 (or 682 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 27.

The square root of 117181080 is about 10825.0210161459. The cubic root of 117181080 is about 489.3495186450.

The spelling of 117181080 in words is "one hundred seventeen million, one hundred eighty-one thousand, eighty".