133407847 has 2 divisors, whose sum is σ = 133407848. Its totient is φ = 133407846.

The previous prime is 133407821. The next prime is 133407871. The reversal of 133407847 is 748704331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133407847 - 2²³ = 125019239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133407817) 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, 66703923 + 66703924.

It is an arithmetic number, because the mean of its divisors is an integer number (66703924).

Almost surely, 2^133407847 is an apocalyptic number.

133407847 is a deficient number, since it is larger than the sum of its proper divisors (1).

133407847 is an equidigital number, since it uses as much as digits as its factorization.

133407847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 133407847 is about 11550.2314695421. The cubic root of 133407847 is about 510.9681047490.

The spelling of 133407847 in words is "one hundred thirty-three million, four hundred seven thousand, eight hundred forty-seven".