13147443173 has 2 divisors, whose sum is σ = 13147443174. Its totient is φ = 13147443172.

The previous prime is 13147443143. The next prime is 13147443203. The reversal of 13147443173 is 37134474131.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (13147443143) and next prime (13147443203).

It can be written as a sum of positive squares in only one way, i.e., 12710758564 + 436684609 = 112742^2 + 20897^2 .

It is a cyclic number.

It is not a de Polignac number, because 13147443173 - 2¹² = 13147439077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13147443143) 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 as a sum of consecutive naturals, namely, 6573721586 + 6573721587.

It is an arithmetic number, because the mean of its divisors is an integer number (6573721587).

Almost surely, 2^13147443173 is an apocalyptic number.

It is an amenable number.

13147443173 is a deficient number, since it is larger than the sum of its proper divisors (1).

13147443173 is an equidigital number, since it uses as much as digits as its factorization.

13147443173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 38.

The spelling of 13147443173 in words is "thirteen billion, one hundred forty-seven million, four hundred forty-three thousand, one hundred seventy-three".