108238138 has 16 divisors (see below), whose sum is σ = 173359296. Its totient is φ = 50561280.

The previous prime is 108238127. The next prime is 108238139. The reversal of 108238138 is 831832801.

It is not an unprimeable number, because it can be changed into a prime (108238139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25383 + ... + 29338.

It is an arithmetic number, because the mean of its divisors is an integer number (10834956).

Almost surely, 2^108238138 is an apocalyptic number.

108238138 is a deficient number, since it is larger than the sum of its proper divisors (65121158).

108238138 is a wasteful number, since it uses less digits than its factorization.

108238138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54789.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 108238138 is about 10403.7559563842. The cubic root of 108238138 is about 476.5700776357.

The spelling of 108238138 in words is "one hundred eight million, two hundred thirty-eight thousand, one hundred thirty-eight".