108885138 has 16 divisors (see below), whose sum is σ = 218111616. Its totient is φ = 36238160.

The previous prime is 108885137. The next prime is 108885193. The reversal of 108885138 is 831588801.

It is a self number, because there is not a number n which added to its sum of digits gives 108885138.

It is not an unprimeable number, because it can be changed into a prime (108885131) 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, 9978 + ... + 17813.

It is an arithmetic number, because the mean of its divisors is an integer number (13631976).

Almost surely, 2^108885138 is an apocalyptic number.

108885138 is an abundant number, since it is smaller than the sum of its proper divisors (109226478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108885138 is a wasteful number, since it uses less digits than its factorization.

108885138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28449.

The product of its (nonzero) digits is 61440, while the sum is 42.

The square root of 108885138 is about 10434.8041668256. The cubic root of 108885138 is about 477.5177673094.

The spelling of 108885138 in words is "one hundred eight million, eight hundred eighty-five thousand, one hundred thirty-eight".