2020109 has 16 divisors (see below), whose sum is σ = 2526720. Its totient is φ = 1572480.

The previous prime is 2020091. The next prime is 2020147. The reversal of 2020109 is 9010202.

It is not a de Polignac number, because 2020109 - 2¹⁶ = 1954573 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2020093 and 2020102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7049 + ... + 7329.

It is an arithmetic number, because the mean of its divisors is an integer number (157920).

2^2020109 is an apocalyptic number.

It is an amenable number.

2020109 is a deficient number, since it is larger than the sum of its proper divisors (506611).

2020109 is a wasteful number, since it uses less digits than its factorization.

2020109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2020109 is about 1421.3053859041. The cubic root of 2020109 is about 126.4129601690.

The spelling of 2020109 in words is "two million, twenty thousand, one hundred nine".