13171415549 has 2 divisors, whose sum is σ = 13171415550. Its totient is φ = 13171415548.

The previous prime is 13171415507. The next prime is 13171415561. The reversal of 13171415549 is 94551417131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7438200025 + 5733215524 = 86245^2 + 75718^2 .

It is a cyclic number.

It is not a de Polignac number, because 13171415549 - 2¹⁶ = 13171350013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13171415249) 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, 6585707774 + 6585707775.

It is an arithmetic number, because the mean of its divisors is an integer number (6585707775).

Almost surely, 2^13171415549 is an apocalyptic number.

It is an amenable number.

13171415549 is a deficient number, since it is larger than the sum of its proper divisors (1).

13171415549 is an equidigital number, since it uses as much as digits as its factorization.

13171415549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 41.

The spelling of 13171415549 in words is "thirteen billion, one hundred seventy-one million, four hundred fifteen thousand, five hundred forty-nine".