12513215 has 48 divisors (see below), whose sum is σ = 18679584. Its totient is φ = 7983360.

The previous prime is 12513209. The next prime is 12513227. The reversal of 12513215 is 51231521.

It is a happy number.

It is not a de Polignac number, because 12513215 - 2⁸ = 12512959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 290984 + ... + 291026.

It is an arithmetic number, because the mean of its divisors is an integer number (389158).

Almost surely, 2^12513215 is an apocalyptic number.

12513215 is a deficient number, since it is larger than the sum of its proper divisors (6166369).

12513215 is a wasteful number, since it uses less digits than its factorization.

12513215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 109 counting only the distinct ones).

The product of its digits is 300, while the sum is 20.

The square root of 12513215 is about 3537.4022954705. The cubic root of 12513215 is about 232.1611976718.

Adding to 12513215 its reverse (51231521), we get a palindrome (63744736).

The spelling of 12513215 in words is "twelve million, five hundred thirteen thousand, two hundred fifteen".