12511859 has 2 divisors, whose sum is σ = 12511860. Its totient is φ = 12511858.

The previous prime is 12511853. The next prime is 12511871. The reversal of 12511859 is 95811521.

12511859 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12511859 - 2⁴ = 12511843 is a prime.

It is not a weakly prime, because it can be changed into another prime (12511853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6255929 + 6255930.

It is an arithmetic number, because the mean of its divisors is an integer number (6255930).

Almost surely, 2^12511859 is an apocalyptic number.

12511859 is a deficient number, since it is larger than the sum of its proper divisors (1).

12511859 is an equidigital number, since it uses as much as digits as its factorization.

12511859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 32.

The square root of 12511859 is about 3537.2106242066. The cubic root of 12511859 is about 232.1528112858.

The spelling of 12511859 in words is "twelve million, five hundred eleven thousand, eight hundred fifty-nine".