1143183 has 4 divisors (see below), whose sum is σ = 1524248. Its totient is φ = 762120.

The previous prime is 1143167. The next prime is 1143193. The reversal of 1143183 is 3813411.

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

It is not a de Polignac number, because 1143183 - 2⁴ = 1143167 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143113) 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, 190528 + ... + 190533.

It is an arithmetic number, because the mean of its divisors is an integer number (381062).

2^1143183 is an apocalyptic number.

1143183 is a deficient number, since it is larger than the sum of its proper divisors (381065).

1143183 is an equidigital number, since it uses as much as digits as its factorization.

1143183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381064.

The product of its digits is 288, while the sum is 21.

The square root of 1143183 is about 1069.1973625108. The cubic root of 1143183 is about 104.5615275282.

Adding to 1143183 its reverse (3813411), we get a palindrome (4956594).

It can be divided in two parts, 1143 and 183, that added together give a triangular number (1326 = T₅₁).

The spelling of 1143183 in words is "one million, one hundred forty-three thousand, one hundred eighty-three".