133000999 has 2 divisors, whose sum is σ = 133001000. Its totient is φ = 133000998.

The previous prime is 133000993. The next prime is 133001027. The reversal of 133000999 is 999000331.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133000999 - 2⁹ = 133000487 is a prime.

133000999 is a modest number, since divided by 999 gives 133 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133000993) 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, 66500499 + 66500500.

It is an arithmetic number, because the mean of its divisors is an integer number (66500500).

Almost surely, 2^133000999 is an apocalyptic number.

133000999 is a deficient number, since it is larger than the sum of its proper divisors (1).

133000999 is an equidigital number, since it uses as much as digits as its factorization.

133000999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6561, while the sum is 34.

The square root of 133000999 is about 11532.6059067324. The cubic root of 133000999 is about 510.4481502331.

The spelling of 133000999 in words is "one hundred thirty-three million, nine hundred ninety-nine", and thus it is an aban number.