118918 has 8 divisors (see below), whose sum is σ = 183312. Its totient is φ = 57816.

The previous prime is 118913. The next prime is 118927. The reversal of 118918 is 819811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×118918³ = 5045033381749896, which contains 333 as substring.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118913) by changing a digit.

118918 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 730 + ... + 877.

It is an arithmetic number, because the mean of its divisors is an integer number (22914).

2¹¹⁸⁹¹⁸ is an apocalyptic number.

118918 is a deficient number, since it is larger than the sum of its proper divisors (64394).

118918 is a wasteful number, since it uses less digits than its factorization.

118918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646.

The product of its digits is 576, while the sum is 28.

The square root of 118918 is about 344.8448926692. The cubic root of 118918 is about 49.1755469293.

The spelling of 118918 in words is "one hundred eighteen thousand, nine hundred eighteen".