15228697 has 12 divisors (see below), whose sum is σ = 16887808. Its totient is φ = 13721400.

The previous prime is 15228677. The next prime is 15228713. The reversal of 15228697 is 79682251.

It is not a de Polignac number, because 15228697 - 2¹¹ = 15226649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15228607) 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, 14872 + ... + 15862.

Almost surely, 2^15228697 is an apocalyptic number.

It is an amenable number.

15228697 is a deficient number, since it is larger than the sum of its proper divisors (1659111).

15228697 is a wasteful number, since it uses less digits than its factorization.

15228697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140 (or 1129 counting only the distinct ones).

The product of its digits is 60480, while the sum is 40.

The square root of 15228697 is about 3902.3963150864. The cubic root of 15228697 is about 247.8682583763.

The spelling of 15228697 in words is "fifteen million, two hundred twenty-eight thousand, six hundred ninety-seven".