12916529 has 2 divisors, whose sum is σ = 12916530. Its totient is φ = 12916528.

The previous prime is 12916511. The next prime is 12916559. The reversal of 12916529 is 92561921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11155600 + 1760929 = 3340^2 + 1327^2 .

It is a cyclic number.

It is not a de Polignac number, because 12916529 - 2¹² = 12912433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12916559) 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, 6458264 + 6458265.

It is an arithmetic number, because the mean of its divisors is an integer number (6458265).

Almost surely, 2^12916529 is an apocalyptic number.

It is an amenable number.

12916529 is a deficient number, since it is larger than the sum of its proper divisors (1).

12916529 is an equidigital number, since it uses as much as digits as its factorization.

12916529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 35.

The square root of 12916529 is about 3593.9572896739. The cubic root of 12916529 is about 234.6291358694.

The spelling of 12916529 in words is "twelve million, nine hundred sixteen thousand, five hundred twenty-nine".