12717315 has 24 divisors (see below), whose sum is σ = 23740080. Its totient is φ = 6260544.

The previous prime is 12717311. The next prime is 12717317. The reversal of 12717315 is 51371721.

It is a happy number.

It is not a de Polignac number, because 12717315 - 2² = 12717311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12717311) 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, 10285 + ... + 11454.

It is an arithmetic number, because the mean of its divisors is an integer number (989170).

Almost surely, 2^12717315 is an apocalyptic number.

12717315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12717315 is a deficient number, since it is larger than the sum of its proper divisors (11022765).

12717315 is a wasteful number, since it uses less digits than its factorization.

12717315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21763 (or 21760 counting only the distinct ones).

The product of its digits is 1470, while the sum is 27.

The square root of 12717315 is about 3566.1344618508. The cubic root of 12717315 is about 233.4166380554.

The spelling of 12717315 in words is "twelve million, seven hundred seventeen thousand, three hundred fifteen".