133433347 has 2 divisors, whose sum is σ = 133433348. Its totient is φ = 133433346.

The previous prime is 133433317. The next prime is 133433351. The reversal of 133433347 is 743334331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133433347 - 2¹¹ = 133431299 is a prime.

It is not a weakly prime, because it can be changed into another prime (133433317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66716673 + 66716674.

It is an arithmetic number, because the mean of its divisors is an integer number (66716674).

Almost surely, 2^133433347 is an apocalyptic number.

133433347 is a deficient number, since it is larger than the sum of its proper divisors (1).

133433347 is an equidigital number, since it uses as much as digits as its factorization.

133433347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 31.

The square root of 133433347 is about 11551.3352907792. The cubic root of 133433347 is about 511.0006586976. Note that the first 3 decimals are identical.

Adding to 133433347 its reverse (743334331), we get a palindrome (876767678).

The spelling of 133433347 in words is "one hundred thirty-three million, four hundred thirty-three thousand, three hundred forty-seven".