2165339 has 8 divisors (see below), whose sum is σ = 2386800. Its totient is φ = 1948000.

The previous prime is 2165327. The next prime is 2165357. The reversal of 2165339 is 9335612.

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

It is a cyclic number.

It is not a de Polignac number, because 2165339 - 2⁴ = 2165323 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2165039) 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, 137 + ... + 2085.

It is an arithmetic number, because the mean of its divisors is an integer number (298350).

2^2165339 is an apocalyptic number.

2165339 is a deficient number, since it is larger than the sum of its proper divisors (221461).

2165339 is a wasteful number, since it uses less digits than its factorization.

2165339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061.

The product of its digits is 4860, while the sum is 29.

The square root of 2165339 is about 1471.5090893365. The cubic root of 2165339 is about 129.3724986486.

It can be divided in two parts, 216 and 5339, that added together give a palindrome (5555).

The spelling of 2165339 in words is "two million, one hundred sixty-five thousand, three hundred thirty-nine".