171229090133 has 2 divisors, whose sum is σ = 171229090134. Its totient is φ = 171229090132.

The previous prime is 171229090093. The next prime is 171229090177. The reversal of 171229090133 is 331090922171.

171229090133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164753186404 + 6475903729 = 405898^2 + 80473^2 .

It is a cyclic number.

It is not a de Polignac number, because 171229090133 - 2¹⁴ = 171229073749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171229090433) 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, 85614545066 + 85614545067.

It is an arithmetic number, because the mean of its divisors is an integer number (85614545067).

Almost surely, 2^171229090133 is an apocalyptic number.

It is an amenable number.

171229090133 is a deficient number, since it is larger than the sum of its proper divisors (1).

171229090133 is an equidigital number, since it uses as much as digits as its factorization.

171229090133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 38.

The spelling of 171229090133 in words is "one hundred seventy-one billion, two hundred twenty-nine million, ninety thousand, one hundred thirty-three".