1256353 has 4 divisors (see below), whose sum is σ = 1435840. Its totient is φ = 1076868.

The previous prime is 1256347. The next prime is 1256369. The reversal of 1256353 is 3536521.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3536521 = 29 ⋅121949.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1256353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1256303) 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, 89733 + ... + 89746.

It is an arithmetic number, because the mean of its divisors is an integer number (358960).

2^1256353 is an apocalyptic number.

It is an amenable number.

1256353 is a deficient number, since it is larger than the sum of its proper divisors (179487).

1256353 is an equidigital number, since it uses as much as digits as its factorization.

1256353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179486.

The product of its digits is 2700, while the sum is 25.

The square root of 1256353 is about 1120.8715359041. The cubic root of 1256353 is about 107.9039211819.

It can be divided in two parts, 12 and 56353, that added together give a palindrome (56365).

The spelling of 1256353 in words is "one million, two hundred fifty-six thousand, three hundred fifty-three".