304213241 has 2 divisors, whose sum is σ = 304213242. Its totient is φ = 304213240.

The previous prime is 304213229. The next prime is 304213267. The reversal of 304213241 is 142312403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 291043600 + 13169641 = 17060^2 + 3629^2 .

It is an emirp because it is prime and its reverse (142312403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 304213241 - 2¹⁰ = 304212217 is a prime.

It is not a weakly prime, because it can be changed into another prime (304213201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152106620 + 152106621.

It is an arithmetic number, because the mean of its divisors is an integer number (152106621).

Almost surely, 2^304213241 is an apocalyptic number.

It is an amenable number.

304213241 is a deficient number, since it is larger than the sum of its proper divisors (1).

304213241 is an equidigital number, since it uses as much as digits as its factorization.

304213241 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 304213241 is about 17441.7098072408. The cubic root of 304213241 is about 672.5522619381.

Adding to 304213241 its reverse (142312403), we get a palindrome (446525644).

The spelling of 304213241 in words is "three hundred four million, two hundred thirteen thousand, two hundred forty-one".