2020189 has 4 divisors (see below), whose sum is σ = 2036224. Its totient is φ = 2004156.

The previous prime is 2020181. The next prime is 2020223. The reversal of 2020189 is 9810202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9810202 = 2 ⋅4905101.

It is a cyclic number.

It is not a de Polignac number, because 2020189 - 2³ = 2020181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020181) 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, 7827 + ... + 8080.

It is an arithmetic number, because the mean of its divisors is an integer number (509056).

2^2020189 is an apocalyptic number.

It is an amenable number.

2020189 is a deficient number, since it is larger than the sum of its proper divisors (16035).

2020189 is a wasteful number, since it uses less digits than its factorization.

2020189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16034.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 2020189 is about 1421.3335287680. Note that the first 3 decimals coincide. The cubic root of 2020189 is about 126.4146288749.

It can be divided in two parts, 2020 and 189, that added together give a square (2209 = 47²).

The spelling of 2020189 in words is "two million, twenty thousand, one hundred eighty-nine".