13124972539 has 8 divisors (see below), whose sum is σ = 15007235040. Its totient is φ = 11244526656.

The previous prime is 13124972537. The next prime is 13124972561. The reversal of 13124972539 is 93527942131.

It is a happy number.

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 13124972539 - 2¹ = 13124972537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13124972537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438634 + ... + 467599.

It is an arithmetic number, because the mean of its divisors is an integer number (1875904380).

Almost surely, 2^13124972539 is an apocalyptic number.

13124972539 is a deficient number, since it is larger than the sum of its proper divisors (1882262501).

13124972539 is an equidigital number, since it uses as much as digits as its factorization.

13124972539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908309.

The product of its digits is 408240, while the sum is 46.

The spelling of 13124972539 in words is "thirteen billion, one hundred twenty-four million, nine hundred seventy-two thousand, five hundred thirty-nine".