2162023 has 12 divisors (see below), whose sum is σ = 2331448. Its totient is φ = 2003760.

The previous prime is 2162003. The next prime is 2162057. The reversal of 2162023 is 3202612.

It is not a de Polignac number, because 2162023 - 2²¹ = 64871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2161988 and 2162006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32236 + ... + 32302.

2^2162023 is an apocalyptic number.

2162023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2162023 is a deficient number, since it is larger than the sum of its proper divisors (169425).

2162023 is an equidigital number, since it uses as much as digits as its factorization.

2162023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2162023 is about 1470.3819231751. The cubic root of 2162023 is about 129.3064245632.

Adding to 2162023 its reverse (3202612), we get a palindrome (5364635).

The spelling of 2162023 in words is "two million, one hundred sixty-two thousand, twenty-three".