1440054143 has 16 divisors (see below), whose sum is σ = 1599811584. Its totient is φ = 1285320960.

The previous prime is 1440054113. The next prime is 1440054151. The reversal of 1440054143 is 3414500441.

It is a happy number.

It is not a de Polignac number, because 1440054143 - 2¹² = 1440050047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440054113) 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, 130196 + ... + 140822.

It is an arithmetic number, because the mean of its divisors is an integer number (99988224).

Almost surely, 2^1440054143 is an apocalyptic number.

1440054143 is a deficient number, since it is larger than the sum of its proper divisors (159757441).

1440054143 is a wasteful number, since it uses less digits than its factorization.

1440054143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10862.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1440054143 is about 37948.0453119789. The cubic root of 1440054143 is about 1129.2573874003.

Adding to 1440054143 its reverse (3414500441), we get a palindrome (4854554584).

The spelling of 1440054143 in words is "one billion, four hundred forty million, fifty-four thousand, one hundred forty-three".