12516859 has 2 divisors, whose sum is σ = 12516860. Its totient is φ = 12516858.

The previous prime is 12516857. The next prime is 12516863. The reversal of 12516859 is 95861521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12516859 - 2¹ = 12516857 is a prime.

It is a super-3 number, since 3×12516859³ (a number of 22 digits) contains 333 as substring.

Together with 12516857, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12516857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6258429 + 6258430.

It is an arithmetic number, because the mean of its divisors is an integer number (6258430).

Almost surely, 2^12516859 is an apocalyptic number.

12516859 is a deficient number, since it is larger than the sum of its proper divisors (1).

12516859 is an equidigital number, since it uses as much as digits as its factorization.

12516859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 37.

The square root of 12516859 is about 3537.9173252070. The cubic root of 12516859 is about 232.1837315369.

The spelling of 12516859 in words is "twelve million, five hundred sixteen thousand, eight hundred fifty-nine".