2160003 has 16 divisors (see below), whose sum is σ = 3126816. Its totient is φ = 1320960.

The previous prime is 2160001. The next prime is 2160017. The reversal of 2160003 is 3000612.

It is not a de Polignac number, because 2160003 - 2¹ = 2160001 is a prime.

It is a super-2 number, since 2×2160003² = 9331225920018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1575 + ... + 2607.

It is an arithmetic number, because the mean of its divisors is an integer number (195426).

2^2160003 is an apocalyptic number.

2160003 is a deficient number, since it is larger than the sum of its proper divisors (966813).

2160003 is a wasteful number, since it uses less digits than its factorization.

2160003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2160003 is about 1469.6948662903. The cubic root of 2160003 is about 129.2661412473.

Adding to 2160003 its reverse (3000612), we get a palindrome (5160615).

The spelling of 2160003 in words is "two million, one hundred sixty thousand, three".