12560287 has 4 divisors (see below), whose sum is σ = 12582856. Its totient is φ = 12537720.

The previous prime is 12560281. The next prime is 12560293. The reversal of 12560287 is 78206521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78206521 = 31 ⋅2522791.

It is an interprime number because it is at equal distance from previous prime (12560281) and next prime (12560293).

It is a cyclic number.

It is not a de Polignac number, because 12560287 - 2¹⁹ = 12035999 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 (12560281) 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, 10428 + ... + 11569.

It is an arithmetic number, because the mean of its divisors is an integer number (3145714).

Almost surely, 2^12560287 is an apocalyptic number.

12560287 is a deficient number, since it is larger than the sum of its proper divisors (22569).

12560287 is an equidigital number, since it uses as much as digits as its factorization.

12560287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22568.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 12560287 is about 3544.0495199701. The cubic root of 12560287 is about 232.4519467499.

The spelling of 12560287 in words is "twelve million, five hundred sixty thousand, two hundred eighty-seven".