12560621 has 2 divisors, whose sum is σ = 12560622. Its totient is φ = 12560620.

The previous prime is 12560573. The next prime is 12560641. The reversal of 12560621 is 12606521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12524521 + 36100 = 3539^2 + 190^2 .

It is an emirp because it is prime and its reverse (12606521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12560621 - 2¹⁰ = 12559597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12560641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6280310 + 6280311.

It is an arithmetic number, because the mean of its divisors is an integer number (6280311).

Almost surely, 2^12560621 is an apocalyptic number.

It is an amenable number.

12560621 is a deficient number, since it is larger than the sum of its proper divisors (1).

12560621 is an equidigital number, since it uses as much as digits as its factorization.

12560621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 12560621 is about 3544.0966408945. The cubic root of 12560621 is about 232.4540071663.

The spelling of 12560621 in words is "twelve million, five hundred sixty thousand, six hundred twenty-one".