15147009 has 24 divisors (see below), whose sum is σ = 23185760. Its totient is φ = 9502272.

The previous prime is 15147007. The next prime is 15147031. The reversal of 15147009 is 90074151.

It is not a de Polignac number, because 15147009 - 2¹ = 15147007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15147001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48237 + ... + 48549.

It is a Proth number, since it is equal to 1849 ⋅ 2¹³ + 1 and 1849 < 2¹³.

Almost surely, 2^15147009 is an apocalyptic number.

15147009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

15147009 is a deficient number, since it is larger than the sum of its proper divisors (8038751).

15147009 is a wasteful number, since it uses less digits than its factorization.

15147009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 15147009 is about 3891.9158521222. The cubic root of 15147009 is about 247.4242682283.

The spelling of 15147009 in words is "fifteen million, one hundred forty-seven thousand, nine".