1440125144 has 8 divisors (see below), whose sum is σ = 2700234660. Its totient is φ = 720062568.

The previous prime is 1440125129. The next prime is 1440125177. The reversal of 1440125144 is 4415210441.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90007814 + ... + 90007829.

Almost surely, 2^1440125144 is an apocalyptic number.

It is an amenable number.

1440125144 is a deficient number, since it is larger than the sum of its proper divisors (1260109516).

1440125144 is a wasteful number, since it uses less digits than its factorization.

1440125144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180015649 (or 180015645 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 1440125144 is about 37948.9808031784. The cubic root of 1440125144 is about 1129.2759462132.

Adding to 1440125144 its reverse (4415210441), we get a palindrome (5855335585).

The spelling of 1440125144 in words is "one billion, four hundred forty million, one hundred twenty-five thousand, one hundred forty-four".