1130999 has 4 divisors (see below), whose sum is σ = 1134336. Its totient is φ = 1127664.

The previous prime is 1130981. The next prime is 1131023. The reversal of 1130999 is 9990311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9990311 = 151 ⋅66161.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1130999 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 (1130929) 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, 1094 + ... + 1859.

It is an arithmetic number, because the mean of its divisors is an integer number (283584).

2^1130999 is an apocalyptic number.

1130999 is a deficient number, since it is larger than the sum of its proper divisors (3337).

1130999 is an equidigital number, since it uses as much as digits as its factorization.

1130999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336.

The product of its (nonzero) digits is 2187, while the sum is 32.

The square root of 1130999 is about 1063.4843675391. The cubic root of 1130999 is about 104.1887290513.

The spelling of 1130999 in words is "one million, one hundred thirty thousand, nine hundred ninety-nine".