133320433 has 2 divisors, whose sum is σ = 133320434. Its totient is φ = 133320432.

The previous prime is 133320427. The next prime is 133320449. The reversal of 133320433 is 334023331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114554209 + 18766224 = 10703^2 + 4332^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133320433 is a prime.

It is not a weakly prime, because it can be changed into another prime (133320533) 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, 66660216 + 66660217.

It is an arithmetic number, because the mean of its divisors is an integer number (66660217).

Almost surely, 2^133320433 is an apocalyptic number.

It is an amenable number.

133320433 is a deficient number, since it is larger than the sum of its proper divisors (1).

133320433 is an equidigital number, since it uses as much as digits as its factorization.

133320433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 22.

The square root of 133320433 is about 11546.4467694612. The cubic root of 133320433 is about 510.8564783191.

Adding to 133320433 its reverse (334023331), we get a palindrome (467343764).

The spelling of 133320433 in words is "one hundred thirty-three million, three hundred twenty thousand, four hundred thirty-three".