12916313 has 2 divisors, whose sum is σ = 12916314. Its totient is φ = 12916312.

The previous prime is 12916289. The next prime is 12916331. The reversal of 12916313 is 31361921.

Together with next prime (12916331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12334144 + 582169 = 3512^2 + 763^2 .

It is a cyclic number.

It is not a de Polignac number, because 12916313 - 2¹⁶ = 12850777 is a prime.

It is a super-2 number, since 2×12916313² = 333662283027938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12916373) 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, 6458156 + 6458157.

It is an arithmetic number, because the mean of its divisors is an integer number (6458157).

Almost surely, 2^12916313 is an apocalyptic number.

It is an amenable number.

12916313 is a deficient number, since it is larger than the sum of its proper divisors (1).

12916313 is an equidigital number, since it uses as much as digits as its factorization.

12916313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 26.

The square root of 12916313 is about 3593.9272391077. The cubic root of 12916313 is about 234.6278279800.

The spelling of 12916313 in words is "twelve million, nine hundred sixteen thousand, three hundred thirteen".