13143615145 has 4 divisors (see below), whose sum is σ = 15772338180. Its totient is φ = 10514892112.

The previous prime is 13143615143. The next prime is 13143615151. The reversal of 13143615145 is 54151634131.

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 6642902016 + 6500713129 = 81504^2 + 80627^2 .

It is a cyclic number.

It is not a de Polignac number, because 13143615145 - 2¹ = 13143615143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13143615145.

It is not an unprimeable number, because it can be changed into a prime (13143615143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1314361510 + ... + 1314361519.

It is an arithmetic number, because the mean of its divisors is an integer number (3943084545).

Almost surely, 2^13143615145 is an apocalyptic number.

It is an amenable number.

13143615145 is a deficient number, since it is larger than the sum of its proper divisors (2628723035).

13143615145 is an equidigital number, since it uses as much as digits as its factorization.

13143615145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628723034.

The product of its digits is 21600, while the sum is 34.

The spelling of 13143615145 in words is "thirteen billion, one hundred forty-three million, six hundred fifteen thousand, one hundred forty-five".