12757049 has 2 divisors, whose sum is σ = 12757050. Its totient is φ = 12757048.

The previous prime is 12756979. The next prime is 12757051. The reversal of 12757049 is 94075721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9120400 + 3636649 = 3020^2 + 1907^2 .

It is an emirp because it is prime and its reverse (94075721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12757049 is a prime.

Together with 12757051, 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 (12757079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6378524 + 6378525.

It is an arithmetic number, because the mean of its divisors is an integer number (6378525).

Almost surely, 2^12757049 is an apocalyptic number.

It is an amenable number.

12757049 is a deficient number, since it is larger than the sum of its proper divisors (1).

12757049 is an equidigital number, since it uses as much as digits as its factorization.

12757049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 12757049 is about 3571.7011353135. The cubic root of 12757049 is about 233.6594810943.

The spelling of 12757049 in words is "twelve million, seven hundred fifty-seven thousand, forty-nine".