1144256 has 28 divisors (see below), whose sum is σ = 2392680. Its totient is φ = 541440.

The previous prime is 1144249. The next prime is 1144261. The reversal of 1144256 is 6524411.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746 + ... + 1686.

2^1144256 is an apocalyptic number.

1144256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1196340).

1144256 is an abundant number, since it is smaller than the sum of its proper divisors (1248424).

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

1144256 is an equidigital number, since it uses as much as digits as its factorization.

1144256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972 (or 962 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 1144256 is about 1069.6990230901. The cubic root of 1144256 is about 104.5942313721.

Adding to 1144256 its reverse (6524411), we get a palindrome (7668667).

The spelling of 1144256 in words is "one million, one hundred forty-four thousand, two hundred fifty-six".