15423109 has 12 divisors (see below), whose sum is σ = 16812576. Its totient is φ = 14141712.

The previous prime is 15423103. The next prime is 15423119. The reversal of 15423109 is 90132451.

It is not a de Polignac number, because 15423109 - 2⁹ = 15422597 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 (15423103) 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 11 ways as a sum of consecutive naturals, for example, 44274 + ... + 44620.

It is an arithmetic number, because the mean of its divisors is an integer number (1401048).

Almost surely, 2^15423109 is an apocalyptic number.

It is an amenable number.

15423109 is a deficient number, since it is larger than the sum of its proper divisors (1389467).

15423109 is a wasteful number, since it uses less digits than its factorization.

15423109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 15423109 is about 3927.2266295695. The cubic root of 15423109 is about 248.9185768409.

The spelling of 15423109 in words is "fifteen million, four hundred twenty-three thousand, one hundred nine".