1110855 has 16 divisors (see below), whose sum is σ = 1797120. Its totient is φ = 585888.

The previous prime is 1110839. The next prime is 1110859. The reversal of 1110855 is 5580111.

It is not a de Polignac number, because 1110855 - 2⁴ = 1110839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1186 + ... + 1904.

It is an arithmetic number, because the mean of its divisors is an integer number (112320).

2^1110855 is an apocalyptic number.

1110855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1110855 is a deficient number, since it is larger than the sum of its proper divisors (686265).

1110855 is a wasteful number, since it uses less digits than its factorization.

1110855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830.

The product of its (nonzero) digits is 200, while the sum is 21.

The square root of 1110855 is about 1053.9710622213. The cubic root of 1110855 is about 103.5664582859.

Adding to 1110855 its reverse (5580111), we get a palindrome (6690966).

The spelling of 1110855 in words is "one million, one hundred ten thousand, eight hundred fifty-five".