164345213 has 2 divisors, whose sum is σ = 164345214. Its totient is φ = 164345212.

The previous prime is 164345173. The next prime is 164345219. The reversal of 164345213 is 312543461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110733529 + 53611684 = 10523^2 + 7322^2 .

It is a cyclic number.

It is not a de Polignac number, because 164345213 - 2¹² = 164341117 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164345219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82172606 + 82172607.

It is an arithmetic number, because the mean of its divisors is an integer number (82172607).

Almost surely, 2^164345213 is an apocalyptic number.

It is an amenable number.

164345213 is a deficient number, since it is larger than the sum of its proper divisors (1).

164345213 is an equidigital number, since it uses as much as digits as its factorization.

164345213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 164345213 is about 12819.7196927234. The cubic root of 164345213 is about 547.7541620687.

Adding to 164345213 its reverse (312543461), we get a palindrome (476888674).

The spelling of 164345213 in words is "one hundred sixty-four million, three hundred forty-five thousand, two hundred thirteen".