164369213 has 2 divisors, whose sum is σ = 164369214. Its totient is φ = 164369212.

The previous prime is 164369159. The next prime is 164369239. The reversal of 164369213 is 312963461.

It is a happy number.

164369213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143089444 + 21279769 = 11962^2 + 4613^2 .

It is a cyclic number.

It is not a de Polignac number, because 164369213 - 2⁸ = 164368957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164369273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82184606 + 82184607.

It is an arithmetic number, because the mean of its divisors is an integer number (82184607).

Almost surely, 2^164369213 is an apocalyptic number.

It is an amenable number.

164369213 is a deficient number, since it is larger than the sum of its proper divisors (1).

164369213 is an equidigital number, since it uses as much as digits as its factorization.

164369213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 35.

The square root of 164369213 is about 12820.6557164601. The cubic root of 164369213 is about 547.7808243603.

The spelling of 164369213 in words is "one hundred sixty-four million, three hundred sixty-nine thousand, two hundred thirteen".