2163165 has 24 divisors (see below), whose sum is σ = 3684000. Its totient is φ = 1083648.

The previous prime is 2163163. The next prime is 2163167. The reversal of 2163165 is 5613612.

It is an interprime number because it is at equal distance from previous prime (2163163) and next prime (2163167).

It is not a de Polignac number, because 2163165 - 2¹ = 2163163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4086 + ... + 4584.

It is an arithmetic number, because the mean of its divisors is an integer number (153500).

2^2163165 is an apocalyptic number.

It is an amenable number.

2163165 is a deficient number, since it is larger than the sum of its proper divisors (1520835).

2163165 is a wasteful number, since it uses less digits than its factorization.

2163165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 524 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

The square root of 2163165 is about 1470.7702063885. The cubic root of 2163165 is about 129.3291874948.

Adding to 2163165 its reverse (5613612), we get a palindrome (7776777).

The spelling of 2163165 in words is "two million, one hundred sixty-three thousand, one hundred sixty-five".