13245135173 has 2 divisors, whose sum is σ = 13245135174. Its totient is φ = 13245135172.

The previous prime is 13245135139. The next prime is 13245135179. The reversal of 13245135173 is 37153154231.

13245135173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11832653284 + 1412481889 = 108778^2 + 37583^2 .

It is a cyclic number.

It is not a de Polignac number, because 13245135173 - 2¹² = 13245131077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13245135179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6622567586 + 6622567587.

It is an arithmetic number, because the mean of its divisors is an integer number (6622567587).

Almost surely, 2^13245135173 is an apocalyptic number.

It is an amenable number.

13245135173 is a deficient number, since it is larger than the sum of its proper divisors (1).

13245135173 is an equidigital number, since it uses as much as digits as its factorization.

13245135173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 35.

The spelling of 13245135173 in words is "thirteen billion, two hundred forty-five million, one hundred thirty-five thousand, one hundred seventy-three".