12743256 has 16 divisors (see below), whose sum is σ = 31858200. Its totient is φ = 4247744.

The previous prime is 12743231. The next prime is 12743257. The reversal of 12743256 is 65234721.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12743257) 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, 265461 + ... + 265508.

Almost surely, 2^12743256 is an apocalyptic number.

It is an amenable number.

12743256 is an abundant number, since it is smaller than the sum of its proper divisors (19114944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12743256 is a wasteful number, since it uses less digits than its factorization.

12743256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530978 (or 530974 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 12743256 is about 3569.7697404735. The cubic root of 12743256 is about 233.5752393691.

Adding to 12743256 its reverse (65234721), we get a palindrome (77977977).

The spelling of 12743256 in words is "twelve million, seven hundred forty-three thousand, two hundred fifty-six".