2165875 has 8 divisors (see below), whose sum is σ = 2703168. Its totient is φ = 1732600.

The previous prime is 2165873. The next prime is 2165893. The reversal of 2165875 is 5785612.

It is not a de Polignac number, because 2165875 - 2¹ = 2165873 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 2165875.

It is not an unprimeable number, because it can be changed into a prime (2165873) 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, 8539 + ... + 8788.

It is an arithmetic number, because the mean of its divisors is an integer number (337896).

2^2165875 is an apocalyptic number.

2165875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2165875 is a deficient number, since it is larger than the sum of its proper divisors (537293).

2165875 is an equidigital number, since it uses as much as digits as its factorization.

2165875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17342 (or 17332 counting only the distinct ones).

The product of its digits is 16800, while the sum is 34.

The square root of 2165875 is about 1471.6912040235. The cubic root of 2165875 is about 129.3831725644.

The spelling of 2165875 in words is "two million, one hundred sixty-five thousand, eight hundred seventy-five".