12930257 has 2 divisors, whose sum is σ = 12930258. Its totient is φ = 12930256.

The previous prime is 12930221. The next prime is 12930287. The reversal of 12930257 is 75203921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8994001 + 3936256 = 2999^2 + 1984^2 .

It is a cyclic number.

It is not a de Polignac number, because 12930257 - 2¹⁰ = 12929233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12930287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6465128 + 6465129.

It is an arithmetic number, because the mean of its divisors is an integer number (6465129).

Almost surely, 2^12930257 is an apocalyptic number.

It is an amenable number.

12930257 is a deficient number, since it is larger than the sum of its proper divisors (1).

12930257 is an equidigital number, since it uses as much as digits as its factorization.

12930257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 12930257 is about 3595.8666549248. The cubic root of 12930257 is about 234.7122296153.

The spelling of 12930257 in words is "twelve million, nine hundred thirty thousand, two hundred fifty-seven".