6541165 has 8 divisors (see below), whose sum is σ = 7957368. Its totient is φ = 5160960.

The previous prime is 6541163. The next prime is 6541189. The reversal of 6541165 is 5611456.

6541165 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2916 + 6538249 = 54^2 + 2557^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6541165 - 2¹ = 6541163 is a prime.

It is a Duffinian number.

6541165 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6541163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8596 + ... + 9325.

It is an arithmetic number, because the mean of its divisors is an integer number (994671).

Almost surely, 2^6541165 is an apocalyptic number.

It is an amenable number.

6541165 is a deficient number, since it is larger than the sum of its proper divisors (1416203).

6541165 is a wasteful number, since it uses less digits than its factorization.

6541165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17999.

The product of its digits is 3600, while the sum is 28.

The square root of 6541165 is about 2557.5701358907. The cubic root of 6541165 is about 187.0187004090.

The spelling of 6541165 in words is "six million, five hundred forty-one thousand, one hundred sixty-five".