117814518 has 24 divisors (see below), whose sum is σ = 255688056. Its totient is φ = 39206400.

The previous prime is 117814513. The next prime is 117814519. The reversal of 117814518 is 815418711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117814511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6433 + ... + 16643.

It is an arithmetic number, because the mean of its divisors is an integer number (10653669).

Almost surely, 2^117814518 is an apocalyptic number.

117814518 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

117814518 is an abundant number, since it is smaller than the sum of its proper divisors (137873538).

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

117814518 is a wasteful number, since it uses less digits than its factorization.

117814518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10860 (or 10857 counting only the distinct ones).

The product of its digits is 8960, while the sum is 36.

The square root of 117814518 is about 10854.2396325123. The cubic root of 117814518 is about 490.2296826868.

The spelling of 117814518 in words is "one hundred seventeen million, eight hundred fourteen thousand, five hundred eighteen".