12760565 has 4 divisors (see below), whose sum is σ = 15312684. Its totient is φ = 10208448.

The previous prime is 12760549. The next prime is 12760613. The reversal of 12760565 is 56506721.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56506721 = 163 ⋅346667.

It can be written as a sum of positive squares in 2 ways, for example, as 2093809 + 10666756 = 1447^2 + 3266^2 .

It is a cyclic number.

It is not a de Polignac number, because 12760565 - 2⁴ = 12760549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276052 + ... + 1276061.

It is an arithmetic number, because the mean of its divisors is an integer number (3828171).

Almost surely, 2^12760565 is an apocalyptic number.

It is an amenable number.

12760565 is a deficient number, since it is larger than the sum of its proper divisors (2552119).

12760565 is an equidigital number, since it uses as much as digits as its factorization.

12760565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552118.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 12760565 is about 3572.1933038401. The cubic root of 12760565 is about 233.6809456004.

The spelling of 12760565 in words is "twelve million, seven hundred sixty thousand, five hundred sixty-five".