109407609 has 12 divisors (see below), whose sum is σ = 161708976. Its totient is φ = 71241912.

The previous prime is 109407601. The next prime is 109407629. The reversal of 109407609 is 906704901.

109407609 is a `hidden beast` number, since 1 + 0 + 9 + 40 + 7 + 609 = 666.

It is not a de Polignac number, because 109407609 - 2³ = 109407601 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (109407601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140967 + ... + 141740.

It is an arithmetic number, because the mean of its divisors is an integer number (13475748).

Almost surely, 2^109407609 is an apocalyptic number.

It is an amenable number.

109407609 is a deficient number, since it is larger than the sum of its proper divisors (52301367).

109407609 is a wasteful number, since it uses less digits than its factorization.

109407609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282756 (or 282753 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 109407609 is about 10459.8092238817. The cubic root of 109407609 is about 478.2803176548.

The spelling of 109407609 in words is "one hundred nine million, four hundred seven thousand, six hundred nine".