1131109 has 8 divisors (see below), whose sum is σ = 1299200. Its totient is φ = 964656.

The previous prime is 1131103. The next prime is 1131113. The reversal of 1131109 is 9011311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1131109 - 2⁵ = 1131077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1131092 and 1131101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2212 + ... + 2674.

It is an arithmetic number, because the mean of its divisors is an integer number (162400).

2^1131109 is an apocalyptic number.

It is an amenable number.

1131109 is a deficient number, since it is larger than the sum of its proper divisors (168091).

1131109 is an equidigital number, since it uses as much as digits as its factorization.

1131109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819.

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

The square root of 1131109 is about 1063.5360830738. The cubic root of 1131109 is about 104.1921067109.

The spelling of 1131109 in words is "one million, one hundred thirty-one thousand, one hundred nine".