109423209 has 8 divisors (see below), whose sum is σ = 166740160. Its totient is φ = 62527536.

The previous prime is 109423189. The next prime is 109423241. The reversal of 109423209 is 902324901.

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

It is not a de Polignac number, because 109423209 - 2¹² = 109419113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109423289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2605294 + ... + 2605335.

It is an arithmetic number, because the mean of its divisors is an integer number (20842520).

Almost surely, 2^109423209 is an apocalyptic number.

It is an amenable number.

109423209 is a deficient number, since it is larger than the sum of its proper divisors (57316951).

109423209 is an equidigital number, since it uses as much as digits as its factorization.

109423209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5210639.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 109423209 is about 10460.5549087991. The cubic root of 109423209 is about 478.3030486100.

The spelling of 109423209 in words is "one hundred nine million, four hundred twenty-three thousand, two hundred nine".