164834213 has 2 divisors, whose sum is σ = 164834214. Its totient is φ = 164834212.

The previous prime is 164834203. The next prime is 164834273. The reversal of 164834213 is 312438461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135652609 + 29181604 = 11647^2 + 5402^2 .

It is a cyclic number.

It is not a de Polignac number, because 164834213 - 2¹⁶ = 164768677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164834213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164834203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82417106 + 82417107.

It is an arithmetic number, because the mean of its divisors is an integer number (82417107).

Almost surely, 2^164834213 is an apocalyptic number.

It is an amenable number.

164834213 is a deficient number, since it is larger than the sum of its proper divisors (1).

164834213 is an equidigital number, since it uses as much as digits as its factorization.

164834213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 32.

The square root of 164834213 is about 12838.7777066199. Note that the first 4 decimals coincide. The cubic root of 164834213 is about 548.2968947699.

The spelling of 164834213 in words is "one hundred sixty-four million, eight hundred thirty-four thousand, two hundred thirteen".