20160841 has 4 divisors (see below), whose sum is σ = 20289412. Its totient is φ = 20032272.

The previous prime is 20160821. The next prime is 20160859. The reversal of 20160841 is 14806102.

20160841 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14806102 = 2 ⋅7403051.

It can be written as a sum of positive squares in 2 ways, for example, as 9734400 + 10426441 = 3120^2 + 3229^2 .

It is a cyclic number.

It is not a de Polignac number, because 20160841 - 2⁵ = 20160809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20160821) 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 3 ways as a sum of consecutive naturals, for example, 64050 + ... + 64363.

It is an arithmetic number, because the mean of its divisors is an integer number (5072353).

Almost surely, 2^20160841 is an apocalyptic number.

It is an amenable number.

20160841 is a deficient number, since it is larger than the sum of its proper divisors (128571).

20160841 is a wasteful number, since it uses less digits than its factorization.

20160841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128570.

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

The square root of 20160841 is about 4490.0825159456. The cubic root of 20160841 is about 272.1674691367.

Adding to 20160841 its reverse (14806102), we get a palindrome (34966943).

The spelling of 20160841 in words is "twenty million, one hundred sixty thousand, eight hundred forty-one".