117136980 has 36 divisors (see below), whose sum is σ = 355316052. Its totient is φ = 31236480.

The previous prime is 117136979. The next prime is 117136991. The reversal of 117136980 is 89631711.

It can be written as a sum of positive squares in 2 ways, for example, as 58430736 + 58706244 = 7644^2 + 7662^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 325201 + ... + 325560.

Almost surely, 2^117136980 is an apocalyptic number.

117136980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117136980 is an abundant number, since it is smaller than the sum of its proper divisors (238179072).

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

117136980 is a wasteful number, since it uses less digits than its factorization.

117136980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650776 (or 650771 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 117136980 is about 10822.9838769168. The cubic root of 117136980 is about 489.2881235759.

The spelling of 117136980 in words is "one hundred seventeen million, one hundred thirty-six thousand, nine hundred eighty".