118118 has 32 divisors (see below), whose sum is σ = 241920. Its totient is φ = 41760.

The previous prime is 118093. The next prime is 118127. The reversal of 118118 is 811811.

It is a self number, because there is not a number n which added to its sum of digits gives 118118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1973 + ... + 2031.

It is an arithmetic number, because the mean of its divisors is an integer number (7560).

2¹¹⁸¹¹⁸ is an apocalyptic number.

118118 is an abundant number, since it is smaller than the sum of its proper divisors (123802).

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

118118 is a wasteful number, since it uses less digits than its factorization.

118118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92.

The product of its digits is 64, while the sum is 20.

The square root of 118118 is about 343.6829934693. The cubic root of 118118 is about 49.0650254289.

Adding to 118118 its reverse (811811), we get a palindrome (929929).

It can be divided in two parts, 11 and 8118, that multiplied together give a palindrome (89298).

The spelling of 118118 in words is "one hundred eighteen thousand, one hundred eighteen".