2082161 has 4 divisors (see below), whose sum is σ = 2087424. Its totient is φ = 2076900.

The previous prime is 2082133. The next prime is 2082163. The reversal of 2082161 is 1612802.

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.

It is a cyclic number.

It is not a de Polignac number, because 2082161 - 2⁶ = 2082097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2082163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1985 + ... + 2846.

It is an arithmetic number, because the mean of its divisors is an integer number (521856).

2^2082161 is an apocalyptic number.

It is an amenable number.

2082161 is a deficient number, since it is larger than the sum of its proper divisors (5263).

2082161 is an equidigital number, since it uses as much as digits as its factorization.

2082161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5262.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 2082161 is about 1442.9695076473. The cubic root of 2082161 is about 127.6942777015.

Adding to 2082161 its reverse (1612802), we get a palindrome (3694963).

The spelling of 2082161 in words is "two million, eighty-two thousand, one hundred sixty-one".