164341321 has 2 divisors, whose sum is σ = 164341322. Its totient is φ = 164341320.

The previous prime is 164341319. The next prime is 164341349. The reversal of 164341321 is 123143461.

164341321 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., 149817600 + 14523721 = 12240^2 + 3811^2 .

It is a cyclic number.

It is not a de Polignac number, because 164341321 - 2¹ = 164341319 is a prime.

Together with 164341319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (164341391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82170660 + 82170661.

It is an arithmetic number, because the mean of its divisors is an integer number (82170661).

Almost surely, 2^164341321 is an apocalyptic number.

It is an amenable number.

164341321 is a deficient number, since it is larger than the sum of its proper divisors (1).

164341321 is an equidigital number, since it uses as much as digits as its factorization.

164341321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 164341321 is about 12819.5678944339. The cubic root of 164341321 is about 547.7498380891.

Adding to 164341321 its reverse (123143461), we get a palindrome (287484782).

The spelling of 164341321 in words is "one hundred sixty-four million, three hundred forty-one thousand, three hundred twenty-one".