12715589 has 4 divisors (see below), whose sum is σ = 12765324. Its totient is φ = 12665856.

The previous prime is 12715583. The next prime is 12715607. The reversal of 12715589 is 98551721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98551721 = 1307 ⋅75403.

It can be written as a sum of positive squares in 2 ways, for example, as 8655364 + 4060225 = 2942^2 + 2015^2 .

It is a cyclic number.

It is not a de Polignac number, because 12715589 - 2²⁰ = 11667013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12715583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24482 + ... + 24995.

It is an arithmetic number, because the mean of its divisors is an integer number (3191331).

Almost surely, 2^12715589 is an apocalyptic number.

It is an amenable number.

12715589 is a deficient number, since it is larger than the sum of its proper divisors (49735).

12715589 is an equidigital number, since it uses as much as digits as its factorization.

12715589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49734.

The product of its digits is 25200, while the sum is 38.

The square root of 12715589 is about 3565.8924549122. The cubic root of 12715589 is about 233.4060777722.

The spelling of 12715589 in words is "twelve million, seven hundred fifteen thousand, five hundred eighty-nine".