12680257 has 2 divisors, whose sum is σ = 12680258. Its totient is φ = 12680256.

The previous prime is 12680251. The next prime is 12680263. The reversal of 12680257 is 75208621.

12680257 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (12680251) and next prime (12680263).

It can be written as a sum of positive squares in only one way, i.e., 9235521 + 3444736 = 3039^2 + 1856^2 .

It is an emirp because it is prime and its reverse (75208621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12680257 - 2¹⁵ = 12647489 is a prime.

It is not a weakly prime, because it can be changed into another prime (12680251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6340128 + 6340129.

It is an arithmetic number, because the mean of its divisors is an integer number (6340129).

Almost surely, 2^12680257 is an apocalyptic number.

It is an amenable number.

12680257 is a deficient number, since it is larger than the sum of its proper divisors (1).

12680257 is an equidigital number, since it uses as much as digits as its factorization.

12680257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 12680257 is about 3560.9348491653. The cubic root of 12680257 is about 233.1896936800.

Adding to 12680257 its reverse (75208621), we get a palindrome (87888878).

The spelling of 12680257 in words is "twelve million, six hundred eighty thousand, two hundred fifty-seven".