133321333 has 2 divisors, whose sum is σ = 133321334. Its totient is φ = 133321332.

The previous prime is 133321319. The next prime is 133321337. The reversal of 133321333 is 333123331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119727364 + 13593969 = 10942^2 + 3687^2 .

It is a cyclic number.

It is not a de Polignac number, because 133321333 - 2⁵ = 133321301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133321337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66660666 + 66660667.

It is an arithmetic number, because the mean of its divisors is an integer number (66660667).

Almost surely, 2^133321333 is an apocalyptic number.

It is an amenable number.

133321333 is a deficient number, since it is larger than the sum of its proper divisors (1).

133321333 is an equidigital number, since it uses as much as digits as its factorization.

133321333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458, while the sum is 22.

The square root of 133321333 is about 11546.4857424240. The cubic root of 133321333 is about 510.8576278548.

Adding to 133321333 its reverse (333123331), we get a palindrome (466444664).

The spelling of 133321333 in words is "one hundred thirty-three million, three hundred twenty-one thousand, three hundred thirty-three".