118501138 has 24 divisors (see below), whose sum is σ = 214408512. Its totient is φ = 48111192.

The previous prime is 118501099. The next prime is 118501139. The reversal of 118501138 is 831105811.

It is not an unprimeable number, because it can be changed into a prime (118501139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6670 + ... + 16777.

It is an arithmetic number, because the mean of its divisors is an integer number (8933688).

Almost surely, 2^118501138 is an apocalyptic number.

118501138 is a deficient number, since it is larger than the sum of its proper divisors (95907374).

118501138 is a wasteful number, since it uses less digits than its factorization.

118501138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23494 (or 23475 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 28.

The square root of 118501138 is about 10885.8227984843. The cubic root of 118501138 is about 491.1801872532.

Adding to 118501138 its reverse (831105811), we get a palindrome (949606949).

The spelling of 118501138 in words is "one hundred eighteen million, five hundred one thousand, one hundred thirty-eight".