2165323 has 2 divisors, whose sum is σ = 2165324. Its totient is φ = 2165322.

The previous prime is 2165321. The next prime is 2165327. The reversal of 2165323 is 3235612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2165323 - 2¹ = 2165321 is a prime.

Together with 2165321, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2165294 and 2165303.

It is not a weakly prime, because it can be changed into another prime (2165321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082661 + 1082662.

It is an arithmetic number, because the mean of its divisors is an integer number (1082662).

2^2165323 is an apocalyptic number.

2165323 is a deficient number, since it is larger than the sum of its proper divisors (1).

2165323 is an equidigital number, since it uses as much as digits as its factorization.

2165323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 22.

The square root of 2165323 is about 1471.5036527308. The cubic root of 2165323 is about 129.3721799972.

The spelling of 2165323 in words is "two million, one hundred sixty-five thousand, three hundred twenty-three".