1144441243 has 16 divisors (see below), whose sum is σ = 1273872096. Its totient is φ = 1019299840.

The previous prime is 1144441217. The next prime is 1144441247. The reversal of 1144441243 is 3421444411.

It is a cyclic number.

It is not a de Polignac number, because 1144441243 - 2²⁹ = 607570331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144441247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 708705 + ... + 710317.

It is an arithmetic number, because the mean of its divisors is an integer number (79617006).

Almost surely, 2^1144441243 is an apocalyptic number.

1144441243 is a deficient number, since it is larger than the sum of its proper divisors (129430853).

1144441243 is a wasteful number, since it uses less digits than its factorization.

1144441243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894.

The product of its digits is 6144, while the sum is 28.

The square root of 1144441243 is about 33829.5912331202. The cubic root of 1144441243 is about 1045.9987530253.

Adding to 1144441243 its reverse (3421444411), we get a palindrome (4565885654).

The spelling of 1144441243 in words is "one billion, one hundred forty-four million, four hundred forty-one thousand, two hundred forty-three".