12653761 has 2 divisors, whose sum is σ = 12653762. Its totient is φ = 12653760.

The previous prime is 12653759. The next prime is 12653777. The reversal of 12653761 is 16735621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12383361 + 270400 = 3519^2 + 520^2 .

It is a cyclic number.

It is not a de Polignac number, because 12653761 - 2¹ = 12653759 is a prime.

Together with 12653759, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12650761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6326880 + 6326881.

It is an arithmetic number, because the mean of its divisors is an integer number (6326881).

Almost surely, 2^12653761 is an apocalyptic number.

It is an amenable number.

12653761 is a deficient number, since it is larger than the sum of its proper divisors (1).

12653761 is an equidigital number, since it uses as much as digits as its factorization.

12653761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 31.

The square root of 12653761 is about 3557.2125323067. The cubic root of 12653761 is about 233.0271601021.

The spelling of 12653761 in words is "twelve million, six hundred fifty-three thousand, seven hundred sixty-one".