12856499 has 2 divisors, whose sum is σ = 12856500. Its totient is φ = 12856498.

The previous prime is 12856489. The next prime is 12856507. The reversal of 12856499 is 99465821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12856499 - 2¹⁶ = 12790963 is a prime.

It is not a weakly prime, because it can be changed into another prime (12856469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6428249 + 6428250.

It is an arithmetic number, because the mean of its divisors is an integer number (6428250).

Almost surely, 2^12856499 is an apocalyptic number.

12856499 is a deficient number, since it is larger than the sum of its proper divisors (1).

12856499 is an equidigital number, since it uses as much as digits as its factorization.

12856499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 44.

The square root of 12856499 is about 3585.5960452901. The cubic root of 12856499 is about 234.2650890635.

The spelling of 12856499 in words is "twelve million, eight hundred fifty-six thousand, four hundred ninety-nine".