13144355641 has 4 divisors (see below), whose sum is σ = 13145603152. Its totient is φ = 13143108132.

The previous prime is 13144355639. The next prime is 13144355669. The reversal of 13144355641 is 14655344131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13144355641 - 2¹ = 13144355639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13144355641.

It is not an unprimeable number, because it can be changed into a prime (13144355941) 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, 607815 + ... + 629068.

It is an arithmetic number, because the mean of its divisors is an integer number (3286400788).

Almost surely, 2^13144355641 is an apocalyptic number.

It is an amenable number.

13144355641 is a deficient number, since it is larger than the sum of its proper divisors (1247511).

13144355641 is a wasteful number, since it uses less digits than its factorization.

13144355641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247510.

The product of its digits is 86400, while the sum is 37.

Adding to 13144355641 its reverse (14655344131), we get a palindrome (27799699772).

The spelling of 13144355641 in words is "thirteen billion, one hundred forty-four million, three hundred fifty-five thousand, six hundred forty-one".