12513559 has 4 divisors (see below), whose sum is σ = 12804616. Its totient is φ = 12222504.

The previous prime is 12513517. The next prime is 12513563. The reversal of 12513559 is 95531521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95531521 = 37 ⋅2581933.

It is a cyclic number.

It is not a de Polignac number, because 12513559 - 2²¹ = 10416407 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 12513559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12513859) 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, 145464 + ... + 145549.

It is an arithmetic number, because the mean of its divisors is an integer number (3201154).

Almost surely, 2^12513559 is an apocalyptic number.

12513559 is a deficient number, since it is larger than the sum of its proper divisors (291057).

12513559 is an equidigital number, since it uses as much as digits as its factorization.

12513559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291056.

The product of its digits is 6750, while the sum is 31.

The square root of 12513559 is about 3537.4509183874. The cubic root of 12513559 is about 232.1633250953.

The spelling of 12513559 in words is "twelve million, five hundred thirteen thousand, five hundred fifty-nine".