133000249 has 2 divisors, whose sum is σ = 133000250. Its totient is φ = 133000248.

The previous prime is 133000229. The next prime is 133000277. The reversal of 133000249 is 942000331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132987024 + 13225 = 11532^2 + 115^2 .

It is a cyclic number.

It is not a de Polignac number, because 133000249 - 2⁷ = 133000121 is a prime.

It is not a weakly prime, because it can be changed into another prime (133000229) 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, 66500124 + 66500125.

It is an arithmetic number, because the mean of its divisors is an integer number (66500125).

Almost surely, 2^133000249 is an apocalyptic number.

It is an amenable number.

133000249 is a deficient number, since it is larger than the sum of its proper divisors (1).

133000249 is an equidigital number, since it uses as much as digits as its factorization.

133000249 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 22.

The square root of 133000249 is about 11532.5733901849. The cubic root of 133000249 is about 510.4471907495.

The spelling of 133000249 in words is "one hundred thirty-three million, two hundred forty-nine", and thus it is an aban number.