2020161 has 32 divisors (see below), whose sum is σ = 3362688. Its totient is φ = 1059840.

The previous prime is 2020153. The next prime is 2020171. The reversal of 2020161 is 1610202.

It is not a de Polignac number, because 2020161 - 2³ = 2020153 is a prime.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (2020171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7155 + ... + 7431.

It is an arithmetic number, because the mean of its divisors is an integer number (105084).

2^2020161 is an apocalyptic number.

It is an amenable number.

2020161 is a deficient number, since it is larger than the sum of its proper divisors (1342527).

2020161 is a wasteful number, since it uses less digits than its factorization.

2020161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2020161 is about 1421.3236788290. The cubic root of 2020161 is about 126.4140448328.

Adding to 2020161 its reverse (1610202), we get a palindrome (3630363).

The spelling of 2020161 in words is "two million, twenty thousand, one hundred sixty-one".