12657049 has 2 divisors, whose sum is σ = 12657050. Its totient is φ = 12657048.

The previous prime is 12657041. The next prime is 12657077. The reversal of 12657049 is 94075621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7661824 + 4995225 = 2768^2 + 2235^2 .

It is a cyclic number.

It is not a de Polignac number, because 12657049 - 2³ = 12657041 is a prime.

It is a zygodrome in base 5.

It is not a weakly prime, because it can be changed into another prime (12657041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6328524 + 6328525.

It is an arithmetic number, because the mean of its divisors is an integer number (6328525).

Almost surely, 2^12657049 is an apocalyptic number.

It is an amenable number.

12657049 is a deficient number, since it is larger than the sum of its proper divisors (1).

12657049 is an equidigital number, since it uses as much as digits as its factorization.

12657049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 12657049 is about 3557.6746619105. The cubic root of 12657049 is about 233.0473419002.

It can be divided in two parts, 126 and 57049, that added together give a palindrome (57175).

The spelling of 12657049 in words is "twelve million, six hundred fifty-seven thousand, forty-nine".