13144913357 has 4 divisors (see below), whose sum is σ = 13275061116. Its totient is φ = 13014765600.

The previous prime is 13144913269. The next prime is 13144913399. The reversal of 13144913357 is 75331944131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75331944131 = 41 ⋅1837364491.

It can be written as a sum of positive squares in 2 ways, for example, as 8027084836 + 5117828521 = 89594^2 + 71539^2 .

It is a cyclic number.

It is not a de Polignac number, because 13144913357 - 2¹⁸ = 13144651213 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 (13144913657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65073728 + ... + 65073929.

It is an arithmetic number, because the mean of its divisors is an integer number (3318765279).

Almost surely, 2^13144913357 is an apocalyptic number.

It is an amenable number.

13144913357 is a deficient number, since it is larger than the sum of its proper divisors (130147759).

13144913357 is a wasteful number, since it uses less digits than its factorization.

13144913357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130147758.

The product of its digits is 136080, while the sum is 41.

The spelling of 13144913357 in words is "thirteen billion, one hundred forty-four million, nine hundred thirteen thousand, three hundred fifty-seven".