12523859 has 2 divisors, whose sum is σ = 12523860. Its totient is φ = 12523858.

The previous prime is 12523843. The next prime is 12523877. The reversal of 12523859 is 95832521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12523859 - 2⁴ = 12523843 is a prime.

It is not a weakly prime, because it can be changed into another prime (12523829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6261929 + 6261930.

It is an arithmetic number, because the mean of its divisors is an integer number (6261930).

Almost surely, 2^12523859 is an apocalyptic number.

12523859 is a deficient number, since it is larger than the sum of its proper divisors (1).

12523859 is an equidigital number, since it uses as much as digits as its factorization.

12523859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 35.

The square root of 12523859 is about 3538.9064695185. The cubic root of 12523859 is about 232.2270060580.

The spelling of 12523859 in words is "twelve million, five hundred twenty-three thousand, eight hundred fifty-nine".