12685459 has 2 divisors, whose sum is σ = 12685460. Its totient is φ = 12685458.

The previous prime is 12685457. The next prime is 12685481. The reversal of 12685459 is 95458621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12685459 - 2¹ = 12685457 is a prime.

Together with 12685457, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12685457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6342729 + 6342730.

It is an arithmetic number, because the mean of its divisors is an integer number (6342730).

Almost surely, 2^12685459 is an apocalyptic number.

12685459 is a deficient number, since it is larger than the sum of its proper divisors (1).

12685459 is an equidigital number, since it uses as much as digits as its factorization.

12685459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 40.

The square root of 12685459 is about 3561.6652004364. The cubic root of 12685459 is about 233.2215775485.

The spelling of 12685459 in words is "twelve million, six hundred eighty-five thousand, four hundred fifty-nine".