133204091 has 2 divisors, whose sum is σ = 133204092. Its totient is φ = 133204090.

The previous prime is 133204087. The next prime is 133204139. The reversal of 133204091 is 190402331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133204091 - 2² = 133204087 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133204031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66602045 + 66602046.

It is an arithmetic number, because the mean of its divisors is an integer number (66602046).

Almost surely, 2^133204091 is an apocalyptic number.

133204091 is a deficient number, since it is larger than the sum of its proper divisors (1).

133204091 is an equidigital number, since it uses as much as digits as its factorization.

133204091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 133204091 is about 11541.4076697775. The cubic root of 133204091 is about 510.7078355347.

The spelling of 133204091 in words is "one hundred thirty-three million, two hundred four thousand, ninety-one".