118557218 has 48 divisors (see below), whose sum is σ = 208707840. Its totient is φ = 50289408.

The previous prime is 118557217. The next prime is 118557233. The reversal of 118557218 is 812755811.

It is not an unprimeable number, because it can be changed into a prime (118557217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 269843 + ... + 270281.

It is an arithmetic number, because the mean of its divisors is an integer number (4348080).

Almost surely, 2^118557218 is an apocalyptic number.

118557218 is a deficient number, since it is larger than the sum of its proper divisors (90150622).

118557218 is a wasteful number, since it uses less digits than its factorization.

118557218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 518 counting only the distinct ones).

The product of its digits is 22400, while the sum is 38.

The square root of 118557218 is about 10888.3983211490. The cubic root of 118557218 is about 491.2576577914.

The spelling of 118557218 in words is "one hundred eighteen million, five hundred fifty-seven thousand, two hundred eighteen".