12757441 has 2 divisors, whose sum is σ = 12757442. Its totient is φ = 12757440.

The previous prime is 12757439. The next prime is 12757453. The reversal of 12757441 is 14475721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12397441 + 360000 = 3521^2 + 600^2 .

It is a cyclic number.

It is not a de Polignac number, because 12757441 - 2¹ = 12757439 is a prime.

Together with 12757439, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12757421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6378720 + 6378721.

It is an arithmetic number, because the mean of its divisors is an integer number (6378721).

Almost surely, 2^12757441 is an apocalyptic number.

It is an amenable number.

12757441 is a deficient number, since it is larger than the sum of its proper divisors (1).

12757441 is an equidigital number, since it uses as much as digits as its factorization.

12757441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7840, while the sum is 31.

The square root of 12757441 is about 3571.7560107040. The cubic root of 12757441 is about 233.6618743745.

The spelling of 12757441 in words is "twelve million, seven hundred fifty-seven thousand, four hundred forty-one".