133420747 has 2 divisors, whose sum is σ = 133420748. Its totient is φ = 133420746.

The previous prime is 133420699. The next prime is 133420751. The reversal of 133420747 is 747024331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133420747 is a prime.

It is not a weakly prime, because it can be changed into another prime (133424747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66710373 + 66710374.

It is an arithmetic number, because the mean of its divisors is an integer number (66710374).

Almost surely, 2^133420747 is an apocalyptic number.

133420747 is a deficient number, since it is larger than the sum of its proper divisors (1).

133420747 is an equidigital number, since it uses as much as digits as its factorization.

133420747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 133420747 is about 11550.7898864104. The cubic root of 133420747 is about 510.9845737355.

The spelling of 133420747 in words is "one hundred thirty-three million, four hundred twenty thousand, seven hundred forty-seven".