12494857 has 2 divisors, whose sum is σ = 12494858. Its totient is φ = 12494856.

The previous prime is 12494851. The next prime is 12494879. The reversal of 12494857 is 75849421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12467961 + 26896 = 3531^2 + 164^2 .

It is an emirp because it is prime and its reverse (75849421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12494857 - 2¹⁵ = 12462089 is a prime.

It is a super-2 number, since 2×12494857² = 312242902900898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12494851) 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, 6247428 + 6247429.

It is an arithmetic number, because the mean of its divisors is an integer number (6247429).

Almost surely, 2^12494857 is an apocalyptic number.

It is an amenable number.

12494857 is a deficient number, since it is larger than the sum of its proper divisors (1).

12494857 is an equidigital number, since it uses as much as digits as its factorization.

12494857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 40.

The square root of 12494857 is about 3534.8065010690. The cubic root of 12494857 is about 232.0476083926.

The spelling of 12494857 in words is "twelve million, four hundred ninety-four thousand, eight hundred fifty-seven".