304222913 has 2 divisors, whose sum is σ = 304222914. Its totient is φ = 304222912.

The previous prime is 304222907. The next prime is 304222931. The reversal of 304222913 is 319222403.

Together with next prime (304222931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196644529 + 107578384 = 14023^2 + 10372^2 .

It is a cyclic number.

It is not a de Polignac number, because 304222913 - 2⁸ = 304222657 is a prime.

It is not a weakly prime, because it can be changed into another prime (304222213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152111456 + 152111457.

It is an arithmetic number, because the mean of its divisors is an integer number (152111457).

Almost surely, 2^304222913 is an apocalyptic number.

It is an amenable number.

304222913 is a deficient number, since it is larger than the sum of its proper divisors (1).

304222913 is an equidigital number, since it uses as much as digits as its factorization.

304222913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 304222913 is about 17441.9870714320. The cubic root of 304222913 is about 672.5593894566.

The spelling of 304222913 in words is "three hundred four million, two hundred twenty-two thousand, nine hundred thirteen".