4002163 has 4 divisors (see below), whose sum is σ = 4366008. Its totient is φ = 3638320.

The previous prime is 4002143. The next prime is 4002169. The reversal of 4002163 is 3612004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4002163 is a prime.

It is a Duffinian number.

4002163 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4002169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181906 + ... + 181927.

It is an arithmetic number, because the mean of its divisors is an integer number (1091502).

Almost surely, 2^4002163 is an apocalyptic number.

4002163 is a deficient number, since it is larger than the sum of its proper divisors (363845).

4002163 is a wasteful number, since it uses less digits than its factorization.

4002163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363844.

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

The square root of 4002163 is about 2000.5406769171. The cubic root of 4002163 is about 158.7687129449.

Adding to 4002163 its reverse (3612004), we get a palindrome (7614167).

The spelling of 4002163 in words is "four million, two thousand, one hundred sixty-three".