1116555 has 32 divisors (see below), whose sum is σ = 1997568. Its totient is φ = 528000.

The previous prime is 1116547. The next prime is 1116569. The reversal of 1116555 is 5556111.

It is not a de Polignac number, because 1116555 - 2³ = 1116547 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11005 + ... + 11105.

It is an arithmetic number, because the mean of its divisors is an integer number (62424).

2^1116555 is an apocalyptic number.

1116555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1116555 is a deficient number, since it is larger than the sum of its proper divisors (881013).

1116555 is a wasteful number, since it uses less digits than its factorization.

1116555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187.

The product of its digits is 750, while the sum is 24.

The square root of 1116555 is about 1056.6716613972. The cubic root of 1116555 is about 103.7432956426.

It can be divided in two parts, 111 and 6555, that added together give a palindrome (6666).

The spelling of 1116555 in words is "one million, one hundred sixteen thousand, five hundred fifty-five".