117681184 has 12 divisors (see below), whose sum is σ = 231684894. Its totient is φ = 58840576.

The previous prime is 117681181. The next prime is 117681197. The reversal of 117681184 is 481186711.

It can be written as a sum of positive squares in only one way, i.e., 117245584 + 435600 = 10828^2 + 660^2 .

It is a super-2 number, since 2×117681184² = 27697722135283712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (117681181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1838737 + ... + 1838800.

Almost surely, 2^117681184 is an apocalyptic number.

It is an amenable number.

117681184 is a deficient number, since it is larger than the sum of its proper divisors (114003710).

117681184 is an equidigital number, since it uses as much as digits as its factorization.

117681184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3677547 (or 3677539 counting only the distinct ones).

The product of its digits is 10752, while the sum is 37.

The square root of 117681184 is about 10848.0958697829. The cubic root of 117681184 is about 490.0446773090.

The spelling of 117681184 in words is "one hundred seventeen million, six hundred eighty-one thousand, one hundred eighty-four".