12650537 has 2 divisors, whose sum is σ = 12650538. Its totient is φ = 12650536.

The previous prime is 12650513. The next prime is 12650543. The reversal of 12650537 is 73505621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12559936 + 90601 = 3544^2 + 301^2 .

It is a cyclic number.

It is not a de Polignac number, because 12650537 - 2²² = 8456233 is a prime.

It is not a weakly prime, because it can be changed into another prime (12650587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6325268 + 6325269.

It is an arithmetic number, because the mean of its divisors is an integer number (6325269).

Almost surely, 2^12650537 is an apocalyptic number.

It is an amenable number.

12650537 is a deficient number, since it is larger than the sum of its proper divisors (1).

12650537 is an equidigital number, since it uses as much as digits as its factorization.

12650537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 12650537 is about 3556.7593396236. The cubic root of 12650537 is about 233.0073677421.

The spelling of 12650537 in words is "twelve million, six hundred fifty thousand, five hundred thirty-seven".