13145322205 has 16 divisors (see below), whose sum is σ = 16071616944. Its totient is φ = 10319948800.

The previous prime is 13145322137. The next prime is 13145322221. The reversal of 13145322205 is 50222354131.

It can be written as a sum of positive squares in 8 ways, for example, as 212401476 + 12932920729 = 14574^2 + 113723^2 .

It is not a de Polignac number, because 13145322205 - 2¹⁷ = 13145191133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 58114 + ... + 172243.

It is an arithmetic number, because the mean of its divisors is an integer number (1004476059).

Almost surely, 2^13145322205 is an apocalyptic number.

It is an amenable number.

13145322205 is a deficient number, since it is larger than the sum of its proper divisors (2926294739).

13145322205 is a wasteful number, since it uses less digits than its factorization.

13145322205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230576.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 13145322205 its reverse (50222354131), we get a palindrome (63367676336).

The spelling of 13145322205 in words is "thirteen billion, one hundred forty-five million, three hundred twenty-two thousand, two hundred five".