164322673 has 2 divisors, whose sum is σ = 164322674. Its totient is φ = 164322672.

The previous prime is 164322643. The next prime is 164322677. The reversal of 164322673 is 376223461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132434064 + 31888609 = 11508^2 + 5647^2 .

It is an emirp because it is prime and its reverse (376223461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164322673 - 2⁹ = 164322161 is a prime.

It is not a weakly prime, because it can be changed into another prime (164322677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82161336 + 82161337.

It is an arithmetic number, because the mean of its divisors is an integer number (82161337).

Almost surely, 2^164322673 is an apocalyptic number.

It is an amenable number.

164322673 is a deficient number, since it is larger than the sum of its proper divisors (1).

164322673 is an equidigital number, since it uses as much as digits as its factorization.

164322673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 34.

The square root of 164322673 is about 12818.8405481931. The cubic root of 164322673 is about 547.7291193693.

The spelling of 164322673 in words is "one hundred sixty-four million, three hundred twenty-two thousand, six hundred seventy-three".