1256959 has 4 divisors (see below), whose sum is σ = 1371240. Its totient is φ = 1142680.

The previous prime is 1256953. The next prime is 1256989. The reversal of 1256959 is 9596521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9596521 = 11 ⋅872411.

It is a de Polignac number, because none of the positive numbers 2^k-1256959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1256953) 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, 57124 + ... + 57145.

It is an arithmetic number, because the mean of its divisors is an integer number (342810).

2^1256959 is an apocalyptic number.

1256959 is a deficient number, since it is larger than the sum of its proper divisors (114281).

1256959 is a wasteful number, since it uses less digits than its factorization.

1256959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114280.

The product of its digits is 24300, while the sum is 37.

The square root of 1256959 is about 1121.1418286729. The cubic root of 1256959 is about 107.9212674918.

The spelling of 1256959 in words is "one million, two hundred fifty-six thousand, nine hundred fifty-nine".