117583218 has 16 divisors (see below), whose sum is σ = 261296160. Its totient is φ = 39194388.

The previous prime is 117583187. The next prime is 117583223. The reversal of 117583218 is 812385711.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1088680 + ... + 1088787.

It is an arithmetic number, because the mean of its divisors is an integer number (16331010).

Almost surely, 2^117583218 is an apocalyptic number.

117583218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

117583218 is an abundant number, since it is smaller than the sum of its proper divisors (143712942).

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

117583218 is a wasteful number, since it uses less digits than its factorization.

117583218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2177478 (or 2177472 counting only the distinct ones).

The product of its digits is 13440, while the sum is 36.

The square root of 117583218 is about 10843.5795750296. The cubic root of 117583218 is about 489.9086571370.

The spelling of 117583218 in words is "one hundred seventeen million, five hundred eighty-three thousand, two hundred eighteen".