1113091 has 4 divisors (see below), whose sum is σ = 1272112. Its totient is φ = 954072.

The previous prime is 1113089. The next prime is 1113103. The reversal of 1113091 is 1903111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1113091 - 2¹ = 1113089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79500 + ... + 79513.

It is an arithmetic number, because the mean of its divisors is an integer number (318028).

2^1113091 is an apocalyptic number.

1113091 is a deficient number, since it is larger than the sum of its proper divisors (159021).

1113091 is an equidigital number, since it uses as much as digits as its factorization.

1113091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159020.

The product of its (nonzero) digits is 27, while the sum is 16.

The square root of 1113091 is about 1055.0312791572. The cubic root of 1113091 is about 103.6359001117.

The spelling of 1113091 in words is "one million, one hundred thirteen thousand, ninety-one".