1256459 has 4 divisors (see below), whose sum is σ = 1259304. Its totient is φ = 1253616.

The previous prime is 1256449. The next prime is 1256477. The reversal of 1256459 is 9546521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1256459 - 2¹⁶ = 1190923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1256429) 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, 602 + ... + 1695.

It is an arithmetic number, because the mean of its divisors is an integer number (314826).

2^1256459 is an apocalyptic number.

1256459 is a deficient number, since it is larger than the sum of its proper divisors (2845).

1256459 is an equidigital number, since it uses as much as digits as its factorization.

1256459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844.

The product of its digits is 10800, while the sum is 32.

The square root of 1256459 is about 1120.9188195405. The cubic root of 1256459 is about 107.9069557574.

The spelling of 1256459 in words is "one million, two hundred fifty-six thousand, four hundred fifty-nine".