12503315 has 16 divisors (see below), whose sum is σ = 16436736. Its totient is φ = 9055200.

The previous prime is 12503297. The next prime is 12503317. The reversal of 12503315 is 51330521.

It is not a de Polignac number, because 12503315 - 2⁸ = 12503059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12503317) 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 15 ways as a sum of consecutive naturals, for example, 25220 + ... + 25710.

It is an arithmetic number, because the mean of its divisors is an integer number (1027296).

Almost surely, 2^12503315 is an apocalyptic number.

12503315 is a deficient number, since it is larger than the sum of its proper divisors (3933421).

12503315 is a wasteful number, since it uses less digits than its factorization.

12503315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 12503315 is about 3536.0026866506. The cubic root of 12503315 is about 232.0999556900.

Adding to 12503315 its reverse (51330521), we get a palindrome (63833836).

The spelling of 12503315 in words is "twelve million, five hundred three thousand, three hundred fifteen".