133344433 has 2 divisors, whose sum is σ = 133344434. Its totient is φ = 133344432.

The previous prime is 133344427. The next prime is 133344437. The reversal of 133344433 is 334443331.

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., 133102369 + 242064 = 11537^2 + 492^2 .

It is a cyclic number.

It is not a de Polignac number, because 133344433 - 2⁵ = 133344401 is a prime.

It is not a weakly prime, because it can be changed into another prime (133344437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66672216 + 66672217.

It is an arithmetic number, because the mean of its divisors is an integer number (66672217).

Almost surely, 2^133344433 is an apocalyptic number.

It is an amenable number.

133344433 is a deficient number, since it is larger than the sum of its proper divisors (1).

133344433 is an equidigital number, since it uses as much as digits as its factorization.

133344433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 28.

The square root of 133344433 is about 11547.4860034555. The cubic root of 133344433 is about 510.8871308344.

Adding to 133344433 its reverse (334443331), we get a palindrome (467787764).

The spelling of 133344433 in words is "one hundred thirty-three million, three hundred forty-four thousand, four hundred thirty-three".