164317142189 has 2 divisors, whose sum is σ = 164317142190. Its totient is φ = 164317142188.

The previous prime is 164317142149. The next prime is 164317142221. The reversal of 164317142189 is 981241713461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115406281225 + 48910860964 = 339715^2 + 221158^2 .

It is a cyclic number.

It is not a de Polignac number, because 164317142189 - 2¹² = 164317138093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164317142149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82158571094 + 82158571095.

It is an arithmetic number, because the mean of its divisors is an integer number (82158571095).

Almost surely, 2^164317142189 is an apocalyptic number.

It is an amenable number.

164317142189 is a deficient number, since it is larger than the sum of its proper divisors (1).

164317142189 is an equidigital number, since it uses as much as digits as its factorization.

164317142189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 47.

The spelling of 164317142189 in words is "one hundred sixty-four billion, three hundred seventeen million, one hundred forty-two thousand, one hundred eighty-nine".