4166161 has 4 divisors (see below), whose sum is σ = 4171300. Its totient is φ = 4161024.

The previous prime is 4166159. The next prime is 4166177. The reversal of 4166161 is 1616614.

4166161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1616614 = 2 ⋅808307.

It can be written as a sum of positive squares in 2 ways, for example, as 1782225 + 2383936 = 1335^2 + 1544^2 .

It is a cyclic number.

It is not a de Polignac number, because 4166161 - 2¹ = 4166159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4166101) 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, 1056 + ... + 3073.

It is an arithmetic number, because the mean of its divisors is an integer number (1042825).

Almost surely, 2^4166161 is an apocalyptic number.

It is an amenable number.

4166161 is a deficient number, since it is larger than the sum of its proper divisors (5139).

4166161 is a wasteful number, since it uses less digits than its factorization.

4166161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5138.

The product of its digits is 864, while the sum is 25.

The square root of 4166161 is about 2041.1175860298. The cubic root of 4166161 is about 160.9083876269.

The spelling of 4166161 in words is "four million, one hundred sixty-six thousand, one hundred sixty-one".