1116556 has 12 divisors (see below), whose sum is σ = 2233168. Its totient is φ = 478512.

The previous prime is 1116547. The next prime is 1116569. The reversal of 1116556 is 6556111.

1116556 is an admirable number.

It is a super-2 number, since 2×1116556² = 2493394602272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1116556.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19911 + ... + 19966.

2^1116556 is an apocalyptic number.

It is an amenable number.

1116556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1116556 is a wasteful number, since it uses less digits than its factorization.

1116556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39888 (or 39886 counting only the distinct ones).

The product of its digits is 900, while the sum is 25.

The square root of 1116556 is about 1056.6721345810. The cubic root of 1116556 is about 103.7433266139.

The spelling of 1116556 in words is "one million, one hundred sixteen thousand, five hundred fifty-six".