320606189 has 8 divisors (see below), whose sum is σ = 325690080. Its totient is φ = 315531216.

The previous prime is 320606173. The next prime is 320606191. The reversal of 320606189 is 981606023.

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 320606189 - 2⁴ = 320606173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320606119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133007 + ... + 135395.

It is an arithmetic number, because the mean of its divisors is an integer number (40711260).

Almost surely, 2^320606189 is an apocalyptic number.

It is an amenable number.

320606189 is a deficient number, since it is larger than the sum of its proper divisors (5083891).

320606189 is a wasteful number, since it uses less digits than its factorization.

320606189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4459.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 320606189 is about 17905.4793010408. The cubic root of 320606189 is about 684.4220098203.

The spelling of 320606189 in words is "three hundred twenty million, six hundred six thousand, one hundred eighty-nine".