12957337 has 2 divisors, whose sum is σ = 12957338. Its totient is φ = 12957336.

The previous prime is 12957317. The next prime is 12957361. The reversal of 12957337 is 73375921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9803161 + 3154176 = 3131^2 + 1776^2 .

It is a cyclic number.

It is not a de Polignac number, because 12957337 - 2⁷ = 12957209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12957296 and 12957305.

It is not a weakly prime, because it can be changed into another prime (12957317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6478668 + 6478669.

It is an arithmetic number, because the mean of its divisors is an integer number (6478669).

Almost surely, 2^12957337 is an apocalyptic number.

It is an amenable number.

12957337 is a deficient number, since it is larger than the sum of its proper divisors (1).

12957337 is an equidigital number, since it uses as much as digits as its factorization.

12957337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39690, while the sum is 37.

The square root of 12957337 is about 3599.6301198873. The cubic root of 12957337 is about 234.8759689537.

The spelling of 12957337 in words is "twelve million, nine hundred fifty-seven thousand, three hundred thirty-seven".