109309617 has 6 divisors (see below), whose sum is σ = 157891682. Its totient is φ = 72873072.

The previous prime is 109309601. The next prime is 109309619. The reversal of 109309617 is 716903901.

109309617 is a `hidden beast` number, since 1 + 0 + 9 + 30 + 9 + 617 = 666.

It can be written as a sum of positive squares in only one way, i.e., 95179536 + 14130081 = 9756^2 + 3759^2 .

It is not a de Polignac number, because 109309617 - 2⁴ = 109309601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109309619) 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, 6072748 + ... + 6072765.

Almost surely, 2^109309617 is an apocalyptic number.

It is an amenable number.

109309617 is a deficient number, since it is larger than the sum of its proper divisors (48582065).

109309617 is a wasteful number, since it uses less digits than its factorization.

109309617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12145519 (or 12145516 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 109309617 is about 10455.1239590930. The cubic root of 109309617 is about 478.1374828472.

The spelling of 109309617 in words is "one hundred nine million, three hundred nine thousand, six hundred seventeen".