304542313 has 2 divisors, whose sum is σ = 304542314. Its totient is φ = 304542312.

The previous prime is 304542299. The next prime is 304542341. The reversal of 304542313 is 313245403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248472169 + 56070144 = 15763^2 + 7488^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-304542313 is a prime.

It is not a weakly prime, because it can be changed into another prime (304542713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152271156 + 152271157.

It is an arithmetic number, because the mean of its divisors is an integer number (152271157).

Almost surely, 2^304542313 is an apocalyptic number.

It is an amenable number.

304542313 is a deficient number, since it is larger than the sum of its proper divisors (1).

304542313 is an equidigital number, since it uses as much as digits as its factorization.

304542313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 304542313 is about 17451.1407363530. The cubic root of 304542313 is about 672.7946778217.

Adding to 304542313 its reverse (313245403), we get a palindrome (617787716).

The spelling of 304542313 in words is "three hundred four million, five hundred forty-two thousand, three hundred thirteen".