117130188 has 72 divisors (see below), whose sum is σ = 328935600. Its totient is φ = 32307072.

The previous prime is 117130147. The next prime is 117130207. The reversal of 117130188 is 881031711.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13618 + ... + 20486.

It is an arithmetic number, because the mean of its divisors is an integer number (4568550).

Almost surely, 2^117130188 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 117130188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164467800).

117130188 is an abundant number, since it is smaller than the sum of its proper divisors (211805412).

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

117130188 is a wasteful number, since it uses less digits than its factorization.

117130188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6919 (or 6910 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 30.

The square root of 117130188 is about 10822.6700956834. The cubic root of 117130188 is about 489.2786665306.

Adding to 117130188 its reverse (881031711), we get a palindrome (998161899).

It can be divided in two parts, 117 and 130188, that added together give a triangular number (130305 = T₅₁₀).

The spelling of 117130188 in words is "one hundred seventeen million, one hundred thirty thousand, one hundred eighty-eight".