1440130523 has 8 divisors (see below), whose sum is σ = 1551228000. Its totient is φ = 1329078528.

The previous prime is 1440130511. The next prime is 1440130529. The reversal of 1440130523 is 3250310441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1440130523 - 2⁴ = 1440130507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1440130529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84203 + ... + 99851.

It is an arithmetic number, because the mean of its divisors is an integer number (193903500).

Almost surely, 2^1440130523 is an apocalyptic number.

1440130523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1440130523 is a deficient number, since it is larger than the sum of its proper divisors (111097477).

1440130523 is a wasteful number, since it uses less digits than its factorization.

1440130523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22741.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1440130523 is about 37949.0516745807. The cubic root of 1440130523 is about 1129.2773521947.

Adding to 1440130523 its reverse (3250310441), we get a palindrome (4690440964).

The spelling of 1440130523 in words is "one billion, four hundred forty million, one hundred thirty thousand, five hundred twenty-three".