133433233 has 2 divisors, whose sum is σ = 133433234. Its totient is φ = 133433232.

The previous prime is 133433227. The next prime is 133433273. The reversal of 133433233 is 332334331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73479184 + 59954049 = 8572^2 + 7743^2 .

It is a cyclic number.

It is not a de Polignac number, because 133433233 - 2⁹ = 133432721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133433198 and 133433207.

It is not a weakly prime, because it can be changed into another prime (133433203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66716616 + 66716617.

It is an arithmetic number, because the mean of its divisors is an integer number (66716617).

Almost surely, 2^133433233 is an apocalyptic number.

It is an amenable number.

133433233 is a deficient number, since it is larger than the sum of its proper divisors (1).

133433233 is an equidigital number, since it uses as much as digits as its factorization.

133433233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 25.

The square root of 133433233 is about 11551.3303562836. The cubic root of 133433233 is about 511.0005131715. Note that the first 3 decimals are identical.

Adding to 133433233 its reverse (332334331), we get a palindrome (465767564).

The spelling of 133433233 in words is "one hundred thirty-three million, four hundred thirty-three thousand, two hundred thirty-three".