109885172 has 18 divisors (see below), whose sum is σ = 194293974. Its totient is φ = 54378400.

The previous prime is 109885169. The next prime is 109885177. The reversal of 109885172 is 271588901.

It can be written as a sum of positive squares in 3 ways, for example, as 70997476 + 38887696 = 8426^2 + 6236^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109885177) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39458 + ... + 42150.

Almost surely, 2^109885172 is an apocalyptic number.

It is an amenable number.

109885172 is a deficient number, since it is larger than the sum of its proper divisors (84408802).

109885172 is a wasteful number, since it uses less digits than its factorization.

109885172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2899 (or 2796 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 41.

The square root of 109885172 is about 10482.6128422259. The cubic root of 109885172 is about 478.9752036710.

The spelling of 109885172 in words is "one hundred nine million, eight hundred eighty-five thousand, one hundred seventy-two".