118900138 has 32 divisors (see below), whose sum is σ = 215740800. Its totient is φ = 48009024.

The previous prime is 118900121. The next prime is 118900141. The reversal of 118900138 is 831009811.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51268 + ... + 53536.

It is an arithmetic number, because the mean of its divisors is an integer number (6741900).

Almost surely, 2^118900138 is an apocalyptic number.

118900138 is a deficient number, since it is larger than the sum of its proper divisors (96840662).

118900138 is a wasteful number, since it uses less digits than its factorization.

118900138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 118900138 is about 10904.1339867043. The cubic root of 118900138 is about 491.7308467912.

Adding to 118900138 its reverse (831009811), we get a palindrome (949909949).

The spelling of 118900138 in words is "one hundred eighteen million, nine hundred thousand, one hundred thirty-eight".