133304317 has 2 divisors, whose sum is σ = 133304318. Its totient is φ = 133304316.

The previous prime is 133304291. The next prime is 133304321. The reversal of 133304317 is 713403331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106378596 + 26925721 = 10314^2 + 5189^2 .

It is an emirp because it is prime and its reverse (713403331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133304317 - 2¹⁵ = 133271549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133304291 and 133304300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133304117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66652158 + 66652159.

It is an arithmetic number, because the mean of its divisors is an integer number (66652159).

Almost surely, 2^133304317 is an apocalyptic number.

It is an amenable number.

133304317 is a deficient number, since it is larger than the sum of its proper divisors (1).

133304317 is an equidigital number, since it uses as much as digits as its factorization.

133304317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 133304317 is about 11545.7488713379. The cubic root of 133304317 is about 510.8358930905.

Adding to 133304317 its reverse (713403331), we get a palindrome (846707648).

The spelling of 133304317 in words is "one hundred thirty-three million, three hundred four thousand, three hundred seventeen".