1144423143 has 48 divisors (see below), whose sum is σ = 1820988000. Its totient is φ = 689762304.

The previous prime is 1144423129. The next prime is 1144423157. The reversal of 1144423143 is 3413244411.

It is an interprime number because it is at equal distance from previous prime (1144423129) and next prime (1144423157).

It is not a de Polignac number, because 1144423143 - 2⁶ = 1144423079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144423103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 440055 + ... + 442647.

It is an arithmetic number, because the mean of its divisors is an integer number (37937250).

Almost surely, 2^1144423143 is an apocalyptic number.

1144423143 is a deficient number, since it is larger than the sum of its proper divisors (676564857).

1144423143 is a wasteful number, since it uses less digits than its factorization.

1144423143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2736 (or 2733 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 1144423143 is about 33829.3237147892. The cubic root of 1144423143 is about 1045.9932386379.

Adding to 1144423143 its reverse (3413244411), we get a palindrome (4557667554).

The spelling of 1144423143 in words is "one billion, one hundred forty-four million, four hundred twenty-three thousand, one hundred forty-three".