12461257 has 2 divisors, whose sum is σ = 12461258. Its totient is φ = 12461256.

The previous prime is 12461243. The next prime is 12461261. The reversal of 12461257 is 75216421.

12461257 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11215801 + 1245456 = 3349^2 + 1116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12461257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12461227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6230628 + 6230629.

It is an arithmetic number, because the mean of its divisors is an integer number (6230629).

Almost surely, 2^12461257 is an apocalyptic number.

It is an amenable number.

12461257 is a deficient number, since it is larger than the sum of its proper divisors (1).

12461257 is an equidigital number, since it uses as much as digits as its factorization.

12461257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 28.

The square root of 12461257 is about 3530.0505662101. The cubic root of 12461257 is about 231.8394214319.

Adding to 12461257 its reverse (75216421), we get a palindrome (87677678).

The spelling of 12461257 in words is "twelve million, four hundred sixty-one thousand, two hundred fifty-seven".