109390209 has 8 divisors (see below), whose sum is σ = 146373792. Its totient is φ = 72666720.

The previous prime is 109390199. The next prime is 109390213. The reversal of 109390209 is 902093901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 109390209 - 2¹⁵ = 109357441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109390209.

It is not an unprimeable number, because it can be changed into a prime (109390219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64039 + ... + 65724.

It is an arithmetic number, because the mean of its divisors is an integer number (18296724).

Almost surely, 2^109390209 is an apocalyptic number.

It is an amenable number.

109390209 is a deficient number, since it is larger than the sum of its proper divisors (36983583).

109390209 is a wasteful number, since it uses less digits than its factorization.

109390209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130047.

The product of its (nonzero) digits is 4374, while the sum is 33.

The square root of 109390209 is about 10458.9774356770. The cubic root of 109390209 is about 478.2549613479.

The spelling of 109390209 in words is "one hundred nine million, three hundred ninety thousand, two hundred nine".