13145421355 has 16 divisors (see below), whose sum is σ = 17236396800. Its totient is φ = 9544836960.

The previous prime is 13145421349. The next prime is 13145421413. The reversal of 13145421355 is 55312454131.

It is not a de Polignac number, because 13145421355 - 2⁵ = 13145421323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13145421355.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159015 + ... + 227104.

It is an arithmetic number, because the mean of its divisors is an integer number (1077274800).

Almost surely, 2^13145421355 is an apocalyptic number.

13145421355 is a deficient number, since it is larger than the sum of its proper divisors (4090975445).

13145421355 is a wasteful number, since it uses less digits than its factorization.

13145421355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386754.

The product of its digits is 36000, while the sum is 34.

Adding to 13145421355 its reverse (55312454131), we get a palindrome (68457875486).

The spelling of 13145421355 in words is "thirteen billion, one hundred forty-five million, four hundred twenty-one thousand, three hundred fifty-five".