109612172 has 12 divisors (see below), whose sum is σ = 191931096. Its totient is φ = 54774720.

The previous prime is 109612163. The next prime is 109612189. The reversal of 109612172 is 271216901.

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, 1172 + ... + 14852.

It is an arithmetic number, because the mean of its divisors is an integer number (15994258).

Almost surely, 2^109612172 is an apocalyptic number.

It is an amenable number.

109612172 is a deficient number, since it is larger than the sum of its proper divisors (82318924).

109612172 is a wasteful number, since it uses less digits than its factorization.

109612172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15688 (or 15686 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 109612172 is about 10469.5831817699. The cubic root of 109612172 is about 478.5782175405.

The spelling of 109612172 in words is "one hundred nine million, six hundred twelve thousand, one hundred seventy-two".