12947513 has 8 divisors (see below), whose sum is σ = 13547520. Its totient is φ = 12361120.

The previous prime is 12947507. The next prime is 12947527. The reversal of 12947513 is 31574921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12947513 - 2⁴ = 12947497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12947513.

It is not an unprimeable number, because it can be changed into a prime (12947563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1433 + ... + 5286.

It is an arithmetic number, because the mean of its divisors is an integer number (1693440).

Almost surely, 2^12947513 is an apocalyptic number.

It is an amenable number.

12947513 is a deficient number, since it is larger than the sum of its proper divisors (600007).

12947513 is an equidigital number, since it uses as much as digits as its factorization.

12947513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6807.

The product of its digits is 7560, while the sum is 32.

The square root of 12947513 is about 3598.2652764909. The cubic root of 12947513 is about 234.8165944872.

The spelling of 12947513 in words is "twelve million, nine hundred forty-seven thousand, five hundred thirteen".