12680537 has 2 divisors, whose sum is σ = 12680538. Its totient is φ = 12680536.

The previous prime is 12680533. The next prime is 12680557. The reversal of 12680537 is 73508621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12503296 + 177241 = 3536^2 + 421^2 .

It is a cyclic number.

It is not a de Polignac number, because 12680537 - 2² = 12680533 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12680533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6340268 + 6340269.

It is an arithmetic number, because the mean of its divisors is an integer number (6340269).

Almost surely, 2^12680537 is an apocalyptic number.

It is an amenable number.

12680537 is a deficient number, since it is larger than the sum of its proper divisors (1).

12680537 is an equidigital number, since it uses as much as digits as its factorization.

12680537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 12680537 is about 3560.9741644668. The cubic root of 12680537 is about 233.1914100656.

The spelling of 12680537 in words is "twelve million, six hundred eighty thousand, five hundred thirty-seven".