118025138 has 32 divisors (see below), whose sum is σ = 223026048. Its totient is φ = 45504000.

The previous prime is 118025137. The next prime is 118025143. The reversal of 118025138 is 831520811.

It is a self number, because there is not a number n which added to its sum of digits gives 118025138.

It is not an unprimeable number, because it can be changed into a prime (118025137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10988 + ... + 18888.

It is an arithmetic number, because the mean of its divisors is an integer number (6969564).

Almost surely, 2^118025138 is an apocalyptic number.

118025138 is a deficient number, since it is larger than the sum of its proper divisors (105000910).

118025138 is a wasteful number, since it uses less digits than its factorization.

118025138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8018.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 118025138 is about 10863.9374998202. The cubic root of 118025138 is about 490.5216407853.

Adding to 118025138 its reverse (831520811), we get a palindrome (949545949).

The spelling of 118025138 in words is "one hundred eighteen million, twenty-five thousand, one hundred thirty-eight".