12516737 has 2 divisors, whose sum is σ = 12516738. Its totient is φ = 12516736.

The previous prime is 12516703. The next prime is 12516769. The reversal of 12516737 is 73761521.

It is an a-pointer prime, because the next prime (12516769) can be obtained adding 12516737 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8814961 + 3701776 = 2969^2 + 1924^2 .

It is a cyclic number.

It is not a de Polignac number, because 12516737 - 2⁸ = 12516481 is a prime.

It is equal to p₈₁₉₇₂₅ and since 12516737 and 819725 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12516037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6258368 + 6258369.

It is an arithmetic number, because the mean of its divisors is an integer number (6258369).

Almost surely, 2^12516737 is an apocalyptic number.

It is an amenable number.

12516737 is a deficient number, since it is larger than the sum of its proper divisors (1).

12516737 is an equidigital number, since it uses as much as digits as its factorization.

12516737 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 12516737 is about 3537.9000833828. The cubic root of 12516737 is about 232.1829771808.

The spelling of 12516737 in words is "twelve million, five hundred sixteen thousand, seven hundred thirty-seven".