133126859 has 2 divisors, whose sum is σ = 133126860. Its totient is φ = 133126858.

The previous prime is 133126843. The next prime is 133126883. The reversal of 133126859 is 958621331.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (958621331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133126859 - 2⁴ = 133126843 is a prime.

It is a super-3 number, since 3×133126859³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (133126159) 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, 66563429 + 66563430.

It is an arithmetic number, because the mean of its divisors is an integer number (66563430).

Almost surely, 2^133126859 is an apocalyptic number.

133126859 is a deficient number, since it is larger than the sum of its proper divisors (1).

133126859 is an equidigital number, since it uses as much as digits as its factorization.

133126859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 38.

The square root of 133126859 is about 11538.0613189565. The cubic root of 133126859 is about 510.6091133089.

The spelling of 133126859 in words is "one hundred thirty-three million, one hundred twenty-six thousand, eight hundred fifty-nine".