12765513 has 8 divisors (see below), whose sum is σ = 17129728. Its totient is φ = 8455824.

The previous prime is 12765499. The next prime is 12765517. The reversal of 12765513 is 31556721.

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

It is not a de Polignac number, because 12765513 - 2²⁰ = 11716937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12765517) 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, 13081 + ... + 14022.

It is an arithmetic number, because the mean of its divisors is an integer number (2141216).

Almost surely, 2^12765513 is an apocalyptic number.

It is an amenable number.

12765513 is a deficient number, since it is larger than the sum of its proper divisors (4364215).

12765513 is a wasteful number, since it uses less digits than its factorization.

12765513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27263.

The product of its digits is 6300, while the sum is 30.

The square root of 12765513 is about 3572.8858084187. The cubic root of 12765513 is about 233.7111455146.

The spelling of 12765513 in words is "twelve million, seven hundred sixty-five thousand, five hundred thirteen".