164302213 has 2 divisors, whose sum is σ = 164302214. Its totient is φ = 164302212.

The previous prime is 164302199. The next prime is 164302217. The reversal of 164302213 is 312203461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164301124 + 1089 = 12818^2 + 33^2 .

It is a cyclic number.

It is not a de Polignac number, because 164302213 - 2⁵ = 164302181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164302217) 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, 82151106 + 82151107.

It is an arithmetic number, because the mean of its divisors is an integer number (82151107).

Almost surely, 2^164302213 is an apocalyptic number.

It is an amenable number.

164302213 is a deficient number, since it is larger than the sum of its proper divisors (1).

164302213 is an equidigital number, since it uses as much as digits as its factorization.

164302213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 164302213 is about 12818.0424792556. The cubic root of 164302213 is about 547.7063856371.

Adding to 164302213 its reverse (312203461), we get a palindrome (476505674).

The spelling of 164302213 in words is "one hundred sixty-four million, three hundred two thousand, two hundred thirteen".