13523030144 has 32 divisors (see below), whose sum is σ = 29012754540. Its totient is φ = 6241397760.

The previous prime is 13523030099. The next prime is 13523030161. The reversal of 13523030144 is 44103032531.

It can be written as a sum of positive squares in 2 ways, for example, as 11210574400 + 2312455744 = 105880^2 + 48088^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4061747 + ... + 4065074.

Almost surely, 2^13523030144 is an apocalyptic number.

It is an amenable number.

13523030144 is an abundant number, since it is smaller than the sum of its proper divisors (15489724396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13523030144 is an equidigital number, since it uses as much as digits as its factorization.

13523030144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8126848 (or 8126836 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 13523030144 its reverse (44103032531), we get a palindrome (57626062675).

The spelling of 13523030144 in words is "thirteen billion, five hundred twenty-three million, thirty thousand, one hundred forty-four".