1131249083 has 4 divisors (see below), whose sum is σ = 1131476808. Its totient is φ = 1131021360.

The previous prime is 1131249073. The next prime is 1131249107. The reversal of 1131249083 is 3809421311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3809421311 = 6653 ⋅572587.

It is a cyclic number.

It is not a de Polignac number, because 1131249083 - 2⁶ = 1131249019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131249073) 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, 106241 + ... + 116402.

It is an arithmetic number, because the mean of its divisors is an integer number (282869202).

Almost surely, 2^1131249083 is an apocalyptic number.

1131249083 is a deficient number, since it is larger than the sum of its proper divisors (227725).

1131249083 is an equidigital number, since it uses as much as digits as its factorization.

1131249083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227724.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1131249083 is about 33634.0464856669. The cubic root of 1131249083 is about 1041.9640778187.

The spelling of 1131249083 in words is "one billion, one hundred thirty-one million, two hundred forty-nine thousand, eighty-three".