6543165 has 16 divisors (see below), whose sum is σ = 10642176. Its totient is φ = 3432000.

The previous prime is 6543127. The next prime is 6543169. The reversal of 6543165 is 5613456.

It is not a de Polignac number, because 6543165 - 2⁶ = 6543101 is a prime.

It is a Curzon number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6543169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2661 + ... + 4490.

It is an arithmetic number, because the mean of its divisors is an integer number (665136).

Almost surely, 2^6543165 is an apocalyptic number.

It is an amenable number.

6543165 is a deficient number, since it is larger than the sum of its proper divisors (4099011).

6543165 is a wasteful number, since it uses less digits than its factorization.

6543165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7220.

The product of its digits is 10800, while the sum is 30.

The square root of 6543165 is about 2557.9611021280. The cubic root of 6543165 is about 187.0377591590.

The spelling of 6543165 in words is "six million, five hundred forty-three thousand, one hundred sixty-five".