34281209 has 2 divisors, whose sum is σ = 34281210. Its totient is φ = 34281208.

The previous prime is 34281199. The next prime is 34281211. The reversal of 34281209 is 90218243.

34281209 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., 29463184 + 4818025 = 5428^2 + 2195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34281209 is a prime.

It is a Sophie Germain prime.

Together with 34281211, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (34284209) 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, 17140604 + 17140605.

It is an arithmetic number, because the mean of its divisors is an integer number (17140605).

Almost surely, 2^34281209 is an apocalyptic number.

It is an amenable number.

34281209 is a deficient number, since it is larger than the sum of its proper divisors (1).

34281209 is an equidigital number, since it uses as much as digits as its factorization.

34281209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 34281209 is about 5855.0157130447. The cubic root of 34281209 is about 324.8518741160.

The spelling of 34281209 in words is "thirty-four million, two hundred eighty-one thousand, two hundred nine".