109365309 has 36 divisors (see below), whose sum is σ = 166903360. Its totient is φ = 71646120.

The previous prime is 109365283. The next prime is 109365323. The reversal of 109365309 is 903563901.

It is not a de Polignac number, because 109365309 - 2¹⁵ = 109332541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109365209) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 518214 + ... + 518424.

Almost surely, 2^109365309 is an apocalyptic number.

It is an amenable number.

109365309 is a deficient number, since it is larger than the sum of its proper divisors (57538051).

109365309 is an frugal number, since it uses more digits than its factorization.

109365309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 36.

The square root of 109365309 is about 10457.7870029945. The cubic root of 109365309 is about 478.2186709208.

The spelling of 109365309 in words is "one hundred nine million, three hundred sixty-five thousand, three hundred nine".