2000189 has 4 divisors (see below), whose sum is σ = 2004156. Its totient is φ = 1996224.

The previous prime is 2000177. The next prime is 2000209. The reversal of 2000189 is 9810002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9810002 = 2 ⋅4905001.

It can be written as a sum of positive squares in 2 ways, for example, as 1716100 + 284089 = 1310^2 + 533^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2000189 is a prime.

It is a Duffinian number.

2000189 is a modest number, since divided by 189 gives 2 as remainder.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2000189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1094 + ... + 2279.

It is an arithmetic number, because the mean of its divisors is an integer number (501039).

2^2000189 is an apocalyptic number.

It is an amenable number.

2000189 is a deficient number, since it is larger than the sum of its proper divisors (3967).

2000189 is an equidigital number, since it uses as much as digits as its factorization.

2000189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3966.

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

The square root of 2000189 is about 1414.2803823853. The cubic root of 2000189 is about 125.9960736158.

The spelling of 2000189 in words is "two million, one hundred eighty-nine", and thus it is an aban number.