12572257 has 2 divisors, whose sum is σ = 12572258. Its totient is φ = 12572256.

The previous prime is 12572249. The next prime is 12572269. The reversal of 12572257 is 75227521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12559936 + 12321 = 3544^2 + 111^2 .

It is an emirp because it is prime and its reverse (75227521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12572257 - 2³ = 12572249 is a prime.

It is not a weakly prime, because it can be changed into another prime (12572207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6286128 + 6286129.

It is an arithmetic number, because the mean of its divisors is an integer number (6286129).

Almost surely, 2^12572257 is an apocalyptic number.

It is an amenable number.

12572257 is a deficient number, since it is larger than the sum of its proper divisors (1).

12572257 is an equidigital number, since it uses as much as digits as its factorization.

12572257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9800, while the sum is 31.

The square root of 12572257 is about 3545.7378639713. The cubic root of 12572257 is about 232.5257658268.

Adding to 12572257 its reverse (75227521), we get a palindrome (87799778).

The spelling of 12572257 in words is "twelve million, five hundred seventy-two thousand, two hundred fifty-seven".