1144323243 has 72 divisors (see below), whose sum is σ = 2003889888. Its totient is φ = 616032000.

The previous prime is 1144323223. The next prime is 1144323251. The reversal of 1144323243 is 3423234411.

It is not a de Polignac number, because 1144323243 - 2⁶ = 1144323179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144323223) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2482033 + ... + 2482493.

It is an arithmetic number, because the mean of its divisors is an integer number (27831804).

Almost surely, 2^1144323243 is an apocalyptic number.

1144323243 is a deficient number, since it is larger than the sum of its proper divisors (859566645).

1144323243 is a wasteful number, since it uses less digits than its factorization.

1144323243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577 (or 543 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 1144323243 is about 33827.8471529005. The cubic root of 1144323243 is about 1045.9628018291.

Adding to 1144323243 its reverse (3423234411), we get a palindrome (4567557654).

The spelling of 1144323243 in words is "one billion, one hundred forty-four million, three hundred twenty-three thousand, two hundred forty-three".