13161847441 has 2 divisors, whose sum is σ = 13161847442. Its totient is φ = 13161847440.

The previous prime is 13161847417. The next prime is 13161847549. The reversal of 13161847441 is 14474816131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7191040000 + 5970807441 = 84800^2 + 77271^2 .

It is an emirp because it is prime and its reverse (14474816131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13161847441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13161847394 and 13161847403.

It is not a weakly prime, because it can be changed into another prime (13161844441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6580923720 + 6580923721.

It is an arithmetic number, because the mean of its divisors is an integer number (6580923721).

Almost surely, 2^13161847441 is an apocalyptic number.

It is an amenable number.

13161847441 is a deficient number, since it is larger than the sum of its proper divisors (1).

13161847441 is an equidigital number, since it uses as much as digits as its factorization.

13161847441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 40.

The spelling of 13161847441 in words is "thirteen billion, one hundred sixty-one million, eight hundred forty-seven thousand, four hundred forty-one".