133640089 has 8 divisors (see below), whose sum is σ = 145892160. Its totient is φ = 121405200.

The previous prime is 133640071. The next prime is 133640093. The reversal of 133640089 is 980046331.

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

It is a cyclic number.

It is not a de Polignac number, because 133640089 - 2⁵ = 133640057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133640029) 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 in 7 ways as a sum of consecutive naturals, for example, 16284 + ... + 23074.

It is an arithmetic number, because the mean of its divisors is an integer number (18236520).

Almost surely, 2^133640089 is an apocalyptic number.

It is an amenable number.

133640089 is a deficient number, since it is larger than the sum of its proper divisors (12252071).

133640089 is a wasteful number, since it uses less digits than its factorization.

133640089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8591.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 133640089 is about 11560.2806626829. The cubic root of 133640089 is about 511.2644377931.

The spelling of 133640089 in words is "one hundred thirty-three million, six hundred forty thousand, eighty-nine".