133420783 has 2 divisors, whose sum is σ = 133420784. Its totient is φ = 133420782.

The previous prime is 133420759. The next prime is 133420789. The reversal of 133420783 is 387024331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133420783 - 2⁵ = 133420751 is a prime.

It is a super-2 number, since 2×133420783² = 35602210672666178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133420789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66710391 + 66710392.

It is an arithmetic number, because the mean of its divisors is an integer number (66710392).

Almost surely, 2^133420783 is an apocalyptic number.

133420783 is a deficient number, since it is larger than the sum of its proper divisors (1).

133420783 is an equidigital number, since it uses as much as digits as its factorization.

133420783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 133420783 is about 11550.7914447452. The cubic root of 133420783 is about 510.9846196940.

The spelling of 133420783 in words is "one hundred thirty-three million, four hundred twenty thousand, seven hundred eighty-three".