12816953 has 2 divisors, whose sum is σ = 12816954. Its totient is φ = 12816952.

The previous prime is 12816949. The next prime is 12816959. The reversal of 12816953 is 35961821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11580409 + 1236544 = 3403^2 + 1112^2 .

It is a cyclic number.

It is not a de Polignac number, because 12816953 - 2² = 12816949 is a prime.

It is not a weakly prime, because it can be changed into another prime (12816959) 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, 6408476 + 6408477.

It is an arithmetic number, because the mean of its divisors is an integer number (6408477).

Almost surely, 2^12816953 is an apocalyptic number.

It is an amenable number.

12816953 is a deficient number, since it is larger than the sum of its proper divisors (1).

12816953 is an equidigital number, since it uses as much as digits as its factorization.

12816953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 35.

The square root of 12816953 is about 3580.0772338038. The cubic root of 12816953 is about 234.0246461488.

The spelling of 12816953 in words is "twelve million, eight hundred sixteen thousand, nine hundred fifty-three".