171229090433 has 2 divisors, whose sum is σ = 171229090434. Its totient is φ = 171229090432.

The previous prime is 171229090427. The next prime is 171229090469. The reversal of 171229090433 is 334090922171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170984731009 + 244359424 = 413503^2 + 15632^2 .

It is a cyclic number.

It is not a de Polignac number, because 171229090433 - 2⁸ = 171229090177 is a prime.

It is not a weakly prime, because it can be changed into another prime (171229090133) 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, 85614545216 + 85614545217.

It is an arithmetic number, because the mean of its divisors is an integer number (85614545217).

Almost surely, 2^171229090433 is an apocalyptic number.

It is an amenable number.

171229090433 is a deficient number, since it is larger than the sum of its proper divisors (1).

171229090433 is an equidigital number, since it uses as much as digits as its factorization.

171229090433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 41.

The spelling of 171229090433 in words is "one hundred seventy-one billion, two hundred twenty-nine million, ninety thousand, four hundred thirty-three".