12494257 has 4 divisors (see below), whose sum is σ = 12532336. Its totient is φ = 12456180.

The previous prime is 12494231. The next prime is 12494281. The reversal of 12494257 is 75249421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12494257 - 2¹¹ = 12492209 is a prime.

It is a super-2 number, since 2×12494257² = 312212915964098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12494357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18543 + ... + 19204.

It is an arithmetic number, because the mean of its divisors is an integer number (3133084).

Almost surely, 2^12494257 is an apocalyptic number.

It is an amenable number.

12494257 is a deficient number, since it is larger than the sum of its proper divisors (38079).

12494257 is an equidigital number, since it uses as much as digits as its factorization.

12494257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38078.

The product of its digits is 20160, while the sum is 34.

The square root of 12494257 is about 3534.7216297751. The cubic root of 12494257 is about 232.0438940432.

The spelling of 12494257 in words is "twelve million, four hundred ninety-four thousand, two hundred fifty-seven".