1130309 has 4 divisors (see below), whose sum is σ = 1132704. Its totient is φ = 1127916.

The previous prime is 1130299. The next prime is 1130317. The reversal of 1130309 is 9030311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9030311 = 409 ⋅22079.

It is a cyclic number.

It is not a de Polignac number, because 1130309 - 2⁴ = 1130293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130359) 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 3 ways as a sum of consecutive naturals, for example, 227 + ... + 1520.

It is an arithmetic number, because the mean of its divisors is an integer number (283176).

2^1130309 is an apocalyptic number.

It is an amenable number.

1130309 is a deficient number, since it is larger than the sum of its proper divisors (2395).

1130309 is an equidigital number, since it uses as much as digits as its factorization.

1130309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 1130309 is about 1063.1599127130. The cubic root of 1130309 is about 104.1675369172.

The spelling of 1130309 in words is "one million, one hundred thirty thousand, three hundred nine".