109571172 has 24 divisors (see below), whose sum is σ = 266782656. Its totient is φ = 34935648.

The previous prime is 109571167. The next prime is 109571213. The reversal of 109571172 is 271175901.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198223 + ... + 198774.

It is an arithmetic number, because the mean of its divisors is an integer number (11115944).

Almost surely, 2^109571172 is an apocalyptic number.

109571172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

109571172 is an abundant number, since it is smaller than the sum of its proper divisors (157211484).

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

109571172 is a wasteful number, since it uses less digits than its factorization.

109571172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397027 (or 397025 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 33.

The square root of 109571172 is about 10467.6249455165. The cubic root of 109571172 is about 478.5185400018.

The spelling of 109571172 in words is "one hundred nine million, five hundred seventy-one thousand, one hundred seventy-two".