304045013 has 2 divisors, whose sum is σ = 304045014. Its totient is φ = 304045012.

The previous prime is 304045003. The next prime is 304045037. The reversal of 304045013 is 310540403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 241429444 + 62615569 = 15538^2 + 7913^2 .

It is a cyclic number.

It is not a de Polignac number, because 304045013 - 2¹⁰ = 304043989 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304045003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152022506 + 152022507.

It is an arithmetic number, because the mean of its divisors is an integer number (152022507).

Almost surely, 2^304045013 is an apocalyptic number.

It is an amenable number.

304045013 is a deficient number, since it is larger than the sum of its proper divisors (1).

304045013 is an equidigital number, since it uses as much as digits as its factorization.

304045013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 304045013 is about 17436.8865626866. The cubic root of 304045013 is about 672.4282666954.

Adding to 304045013 its reverse (310540403), we get a palindrome (614585416).

The spelling of 304045013 in words is "three hundred four million, forty-five thousand, thirteen".