12510649 has 2 divisors, whose sum is σ = 12510650. Its totient is φ = 12510648.

The previous prime is 12510613. The next prime is 12510671. The reversal of 12510649 is 94601521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12299049 + 211600 = 3507^2 + 460^2 .

It is a cyclic number.

It is not a de Polignac number, because 12510649 - 2¹⁹ = 11986361 is a prime.

It is not a weakly prime, because it can be changed into another prime (12510349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6255324 + 6255325.

It is an arithmetic number, because the mean of its divisors is an integer number (6255325).

Almost surely, 2^12510649 is an apocalyptic number.

It is an amenable number.

12510649 is a deficient number, since it is larger than the sum of its proper divisors (1).

12510649 is an equidigital number, since it uses as much as digits as its factorization.

12510649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 12510649 is about 3537.0395813448. The cubic root of 12510649 is about 232.1453273471.

The spelling of 12510649 in words is "twelve million, five hundred ten thousand, six hundred forty-nine".