108939188 has 12 divisors (see below), whose sum is σ = 190787520. Its totient is φ = 54428472.

The previous prime is 108939169. The next prime is 108939191. The reversal of 108939188 is 881939801.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3878 + ... + 15261.

It is an arithmetic number, because the mean of its divisors is an integer number (15898960).

Almost surely, 2^108939188 is an apocalyptic number.

It is an amenable number.

108939188 is a deficient number, since it is larger than the sum of its proper divisors (81848332).

108939188 is a wasteful number, since it uses less digits than its factorization.

108939188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20566 (or 20564 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 47.

The square root of 108939188 is about 10437.3937359860. The cubic root of 108939188 is about 477.5967666610.

The spelling of 108939188 in words is "one hundred eight million, nine hundred thirty-nine thousand, one hundred eighty-eight".