1256967 has 6 divisors (see below), whose sum is σ = 1815632. Its totient is φ = 837972.

The previous prime is 1256953. The next prime is 1256989. The reversal of 1256967 is 7696521.

It is not a de Polignac number, because 1256967 - 2⁶ = 1256903 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1256917) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69823 + ... + 69840.

2^1256967 is an apocalyptic number.

1256967 is a deficient number, since it is larger than the sum of its proper divisors (558665).

1256967 is a wasteful number, since it uses less digits than its factorization.

1256967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139669 (or 139666 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 1256967 is about 1121.1453964585. The cubic root of 1256967 is about 107.9214964487.

The spelling of 1256967 in words is "one million, two hundred fifty-six thousand, nine hundred sixty-seven".