1111089 has 16 divisors (see below), whose sum is σ = 1708928. Its totient is φ = 628992.

The previous prime is 1111087. The next prime is 1111091. The reversal of 1111089 is 9801111.

It is an interprime number because it is at equal distance from previous prime (1111087) and next prime (1111091).

It is not a de Polignac number, because 1111089 - 2¹ = 1111087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3129 + ... + 3465.

It is an arithmetic number, because the mean of its divisors is an integer number (106808).

2^1111089 is an apocalyptic number.

It is an amenable number.

1111089 is a deficient number, since it is larger than the sum of its proper divisors (597839).

1111089 is a wasteful number, since it uses less digits than its factorization.

1111089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504.

The product of its (nonzero) digits is 72, while the sum is 21.

The square root of 1111089 is about 1054.0820651164. The cubic root of 1111089 is about 103.5737298169.

The spelling of 1111089 in words is "one million, one hundred eleven thousand, eighty-nine".