12257587 has 2 divisors, whose sum is σ = 12257588. Its totient is φ = 12257586.

The previous prime is 12257573. The next prime is 12257591. The reversal of 12257587 is 78575221.

12257587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12257587 is a prime.

It is not a weakly prime, because it can be changed into another prime (12257507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6128793 + 6128794.

It is an arithmetic number, because the mean of its divisors is an integer number (6128794).

Almost surely, 2^12257587 is an apocalyptic number.

12257587 is a deficient number, since it is larger than the sum of its proper divisors (1).

12257587 is an equidigital number, since it uses as much as digits as its factorization.

12257587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39200, while the sum is 37.

The square root of 12257587 is about 3501.0836893739. The cubic root of 12257587 is about 230.5693957746.

The spelling of 12257587 in words is "twelve million, two hundred fifty-seven thousand, five hundred eighty-seven".