12716537 has 2 divisors, whose sum is σ = 12716538. Its totient is φ = 12716536.

The previous prime is 12716531. The next prime is 12716569. The reversal of 12716537 is 73561721.

It is an a-pointer prime, because the next prime (12716569) can be obtained adding 12716537 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6446521 + 6270016 = 2539^2 + 2504^2 .

It is a cyclic number.

It is not a de Polignac number, because 12716537 - 2⁴ = 12716521 is a prime.

It is not a weakly prime, because it can be changed into another prime (12716531) 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, 6358268 + 6358269.

It is an arithmetic number, because the mean of its divisors is an integer number (6358269).

Almost surely, 2^12716537 is an apocalyptic number.

It is an amenable number.

12716537 is a deficient number, since it is larger than the sum of its proper divisors (1).

12716537 is an equidigital number, since it uses as much as digits as its factorization.

12716537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8820, while the sum is 32.

The square root of 12716537 is about 3566.0253784851. The cubic root of 12716537 is about 233.4118780924.

The spelling of 12716537 in words is "twelve million, seven hundred sixteen thousand, five hundred thirty-seven".