13144294517 has 4 divisors (see below), whose sum is σ = 13324353420. Its totient is φ = 12964235616.

The previous prime is 13144294477. The next prime is 13144294519. The reversal of 13144294517 is 71549244131.

It is a happy number.

13144294517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10200798001 + 2943496516 = 100999^2 + 54254^2 .

It is a cyclic number.

It is not a de Polignac number, because 13144294517 - 2⁶ = 13144294453 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 (13144294519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90029342 + ... + 90029487.

It is an arithmetic number, because the mean of its divisors is an integer number (3331088355).

Almost surely, 2^13144294517 is an apocalyptic number.

It is an amenable number.

13144294517 is a deficient number, since it is larger than the sum of its proper divisors (180058903).

13144294517 is an equidigital number, since it uses as much as digits as its factorization.

13144294517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180058902.

The product of its digits is 120960, while the sum is 41.

The spelling of 13144294517 in words is "thirteen billion, one hundred forty-four million, two hundred ninety-four thousand, five hundred seventeen".