4082161 has 4 divisors (see below), whose sum is σ = 4114432. Its totient is φ = 4049892.

The previous prime is 4082147. The next prime is 4082171. The reversal of 4082161 is 1612804.

4082161 is nontrivially palindromic in base 12.

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 a de Polignac number, because none of the positive numbers 2^k-4082161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4082101) 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, 15945 + ... + 16198.

It is an arithmetic number, because the mean of its divisors is an integer number (1028608).

Almost surely, 2^4082161 is an apocalyptic number.

It is an amenable number.

4082161 is a deficient number, since it is larger than the sum of its proper divisors (32271).

4082161 is a wasteful number, since it uses less digits than its factorization.

4082161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32270.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 4082161 is about 2020.4358440693. The cubic root of 4082161 is about 159.8196013660.

Adding to 4082161 its reverse (1612804), we get a palindrome (5694965).

The spelling of 4082161 in words is "four million, eighty-two thousand, one hundred sixty-one".