12528315 has 24 divisors (see below), whose sum is σ = 22860240. Its totient is φ = 6329664.

The previous prime is 12528301. The next prime is 12528331. The reversal of 12528315 is 51382521.

It is a happy number.

It is not a de Polignac number, because 12528315 - 2⁵ = 12528283 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6472 + ... + 8181.

It is an arithmetic number, because the mean of its divisors is an integer number (952510).

Almost surely, 2^12528315 is an apocalyptic number.

12528315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12528315 is a deficient number, since it is larger than the sum of its proper divisors (10331925).

12528315 is a wasteful number, since it uses less digits than its factorization.

12528315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14683 (or 14680 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 12528315 is about 3539.5359865383. The cubic root of 12528315 is about 232.2545449829.

The spelling of 12528315 in words is "twelve million, five hundred twenty-eight thousand, three hundred fifteen".