133706589 has 8 divisors (see below), whose sum is σ = 178449600. Its totient is φ = 89050656.

The previous prime is 133706557. The next prime is 133706593. The reversal of 133706589 is 985607331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133706589 - 2⁵ = 133706557 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 133706589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133706189) 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 in 7 ways as a sum of consecutive naturals, for example, 18097 + ... + 24390.

It is an arithmetic number, because the mean of its divisors is an integer number (22306200).

Almost surely, 2^133706589 is an apocalyptic number.

It is an amenable number.

133706589 is a deficient number, since it is larger than the sum of its proper divisors (44743011).

133706589 is a wasteful number, since it uses less digits than its factorization.

133706589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43539.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 133706589 is about 11563.1565327120. The cubic root of 133706589 is about 511.3492263411.

The spelling of 133706589 in words is "one hundred thirty-three million, seven hundred six thousand, five hundred eighty-nine".