304241213 has 2 divisors, whose sum is σ = 304241214. Its totient is φ = 304241212.

The previous prime is 304241209. The next prime is 304241239. The reversal of 304241213 is 312142403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208455844 + 95785369 = 14438^2 + 9787^2 .

It is a cyclic number.

It is not a de Polignac number, because 304241213 - 2² = 304241209 is a prime.

It is a super-2 number, since 2×304241213² = 185125431375422738, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304243213) 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, 152120606 + 152120607.

It is an arithmetic number, because the mean of its divisors is an integer number (152120607).

Almost surely, 2^304241213 is an apocalyptic number.

It is an amenable number.

304241213 is a deficient number, since it is larger than the sum of its proper divisors (1).

304241213 is an equidigital number, since it uses as much as digits as its factorization.

304241213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 304241213 is about 17442.5116597352. The cubic root of 304241213 is about 672.5728747329.

Adding to 304241213 its reverse (312142403), we get a palindrome (616383616).

The spelling of 304241213 in words is "three hundred four million, two hundred forty-one thousand, two hundred thirteen".