201089 has 8 divisors (see below), whose sum is σ = 240000. Its totient is φ = 164736.

The previous prime is 201073. The next prime is 201101. The reversal of 201089 is 980102.

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 201089 - 2⁴ = 201073 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201089.

It is not an unprimeable number, because it can be changed into a prime (201049) 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, 464 + ... + 785.

It is an arithmetic number, because the mean of its divisors is an integer number (30000).

2²⁰¹⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

201089 is a deficient number, since it is larger than the sum of its proper divisors (38911).

201089 is a wasteful number, since it uses less digits than its factorization.

201089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 201089 is about 448.4294816356. The cubic root of 201089 is about 58.5863045414.

The spelling of 201089 in words is "two hundred one thousand, eighty-nine".