13125552239 has 4 divisors (see below), whose sum is σ = 13126463856. Its totient is φ = 13124640624.

The previous prime is 13125552229. The next prime is 13125552247. The reversal of 13125552239 is 93225552131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13125552239 - 2¹² = 13125548143 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 (13125552229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433859 + ... + 463124.

It is an arithmetic number, because the mean of its divisors is an integer number (3281615964).

Almost surely, 2^13125552239 is an apocalyptic number.

13125552239 is a deficient number, since it is larger than the sum of its proper divisors (911617).

13125552239 is an equidigital number, since it uses as much as digits as its factorization.

13125552239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911616.

The product of its digits is 81000, while the sum is 38.

The spelling of 13125552239 in words is "thirteen billion, one hundred twenty-five million, five hundred fifty-two thousand, two hundred thirty-nine".