108921238 has 16 divisors (see below), whose sum is σ = 170707680. Its totient is φ = 52024896.

The previous prime is 108921233. The next prime is 108921251. The reversal of 108921238 is 832129801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108921233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64906 + ... + 66562.

It is an arithmetic number, because the mean of its divisors is an integer number (10669230).

Almost surely, 2^108921238 is an apocalyptic number.

108921238 is a deficient number, since it is larger than the sum of its proper divisors (61786442).

108921238 is a wasteful number, since it uses less digits than its factorization.

108921238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3111.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 108921238 is about 10436.5338115679. The cubic root of 108921238 is about 477.5705338822.

The spelling of 108921238 in words is "one hundred eight million, nine hundred twenty-one thousand, two hundred thirty-eight".