1130256 has 60 divisors (see below), whose sum is σ = 3249792. Its totient is φ = 366528.

The previous prime is 1130251. The next prime is 1130257. The reversal of 1130256 is 6520311.

1130256 is a nontrivial binomial coefficient, being equal to C(1504, 2).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1130251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6685 + ... + 6851.

2^1130256 is an apocalyptic number.

1130256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1130256 is the 1503-rd triangular number and also the 752-nd hexagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1130256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1624896).

1130256 is an abundant number, since it is smaller than the sum of its proper divisors (2119536).

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

1130256 is a wasteful number, since it uses less digits than its factorization.

1130256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1130256 is about 1063.1349867256. The cubic root of 1130256 is about 104.1659087589.

Adding to 1130256 its reverse (6520311), we get a palindrome (7650567).

The spelling of 1130256 in words is "one million, one hundred thirty thousand, two hundred fifty-six".