164317142149 has 2 divisors, whose sum is σ = 164317142150. Its totient is φ = 164317142148.

The previous prime is 164317142147. The next prime is 164317142189. The reversal of 164317142149 is 941241713461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121953211524 + 42363930625 = 349218^2 + 205825^2 .

It is a cyclic number.

It is not a de Polignac number, because 164317142149 - 2¹ = 164317142147 is a prime.

Together with 164317142147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164317142147) 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, 82158571074 + 82158571075.

It is an arithmetic number, because the mean of its divisors is an integer number (82158571075).

Almost surely, 2^164317142149 is an apocalyptic number.

It is an amenable number.

164317142149 is a deficient number, since it is larger than the sum of its proper divisors (1).

164317142149 is an equidigital number, since it uses as much as digits as its factorization.

164317142149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The spelling of 164317142149 in words is "one hundred sixty-four billion, three hundred seventeen million, one hundred forty-two thousand, one hundred forty-nine".