304330133 has 2 divisors, whose sum is σ = 304330134. Its totient is φ = 304330132.

The previous prime is 304330129. The next prime is 304330139. The reversal of 304330133 is 331033403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152720164 + 151609969 = 12358^2 + 12313^2 .

It is a cyclic number.

It is not a de Polignac number, because 304330133 - 2² = 304330129 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304330139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152165066 + 152165067.

It is an arithmetic number, because the mean of its divisors is an integer number (152165067).

Almost surely, 2^304330133 is an apocalyptic number.

It is an amenable number.

304330133 is a deficient number, since it is larger than the sum of its proper divisors (1).

304330133 is an equidigital number, since it uses as much as digits as its factorization.

304330133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 20.

The square root of 304330133 is about 17445.0604183534. The cubic root of 304330133 is about 672.6383922149.

Adding to 304330133 its reverse (331033403), we get a palindrome (635363536).

The spelling of 304330133 in words is "three hundred four million, three hundred thirty thousand, one hundred thirty-three".