133320533 has 2 divisors, whose sum is σ = 133320534. Its totient is φ = 133320532.

The previous prime is 133320527. The next prime is 133320541. The reversal of 133320533 is 335023331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127080529 + 6240004 = 11273^2 + 2498^2 .

It is a cyclic number.

It is not a de Polignac number, because 133320533 - 2⁶ = 133320469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133320499 and 133320508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133320433) 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, 66660266 + 66660267.

It is an arithmetic number, because the mean of its divisors is an integer number (66660267).

Almost surely, 2^133320533 is an apocalyptic number.

It is an amenable number.

133320533 is a deficient number, since it is larger than the sum of its proper divisors (1).

133320533 is an equidigital number, since it uses as much as digits as its factorization.

133320533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 23.

The square root of 133320533 is about 11546.4510997969. The cubic root of 133320533 is about 510.8566060456.

Adding to 133320533 its reverse (335023331), we get a palindrome (468343864).

The spelling of 133320533 in words is "one hundred thirty-three million, three hundred twenty thousand, five hundred thirty-three".