343134221 has 2 divisors, whose sum is σ = 343134222. Its totient is φ = 343134220.

The previous prime is 343134203. The next prime is 343134227. The reversal of 343134221 is 122431343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342768196 + 366025 = 18514^2 + 605^2 .

It is a cyclic number.

It is not a de Polignac number, because 343134221 - 2⁶ = 343134157 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 (343134227) 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, 171567110 + 171567111.

It is an arithmetic number, because the mean of its divisors is an integer number (171567111).

Almost surely, 2^343134221 is an apocalyptic number.

It is an amenable number.

343134221 is a deficient number, since it is larger than the sum of its proper divisors (1).

343134221 is an equidigital number, since it uses as much as digits as its factorization.

343134221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 23.

The square root of 343134221 is about 18523.8824494219. The cubic root of 343134221 is about 700.0912948954.

Adding to 343134221 its reverse (122431343), we get a palindrome (465565564).

The spelling of 343134221 in words is "three hundred forty-three million, one hundred thirty-four thousand, two hundred twenty-one".