4161365 has 16 divisors (see below), whose sum is σ = 5457648. Its totient is φ = 3027456.

The previous prime is 4161349. The next prime is 4161389. The reversal of 4161365 is 5631614.

It can be written as a sum of positive squares in 8 ways, for example, as 7921 + 4153444 = 89^2 + 2038^2 .

It is not a de Polignac number, because 4161365 - 2⁴ = 4161349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4307 + ... + 5183.

It is an arithmetic number, because the mean of its divisors is an integer number (341103).

Almost surely, 2^4161365 is an apocalyptic number.

It is an amenable number.

4161365 is a deficient number, since it is larger than the sum of its proper divisors (1296283).

4161365 is a wasteful number, since it uses less digits than its factorization.

4161365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968.

The product of its digits is 2160, while the sum is 26.

The square root of 4161365 is about 2039.9424011476. The cubic root of 4161365 is about 160.8466190951.

Adding to 4161365 its reverse (5631614), we get a palindrome (9792979).

The spelling of 4161365 in words is "four million, one hundred sixty-one thousand, three hundred sixty-five".