1166256 has 120 divisors (see below), whose sum is σ = 4062240. Its totient is φ = 304128.

The previous prime is 1166237. The next prime is 1166287. The reversal of 1166256 is 6526611.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13060 + ... + 13148.

It is an arithmetic number, because the mean of its divisors is an integer number (33852).

2^1166256 is an apocalyptic number.

1166256 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 1166256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2031120).

1166256 is an abundant number, since it is smaller than the sum of its proper divisors (2895984).

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

1166256 is a wasteful number, since it uses less digits than its factorization.

1166256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 114 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1166256 is about 1079.9333312756. The cubic root of 1166256 is about 105.2603065193.

The spelling of 1166256 in words is "one million, one hundred sixty-six thousand, two hundred fifty-six".