2163006 has 12 divisors (see below), whose sum is σ = 4686552. Its totient is φ = 720996.

The previous prime is 2162977. The next prime is 2163011. The reversal of 2163006 is 6003612.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 120167 = 2163006 / (2 + 1 + 6 + 3 + 0 + 0 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 2163006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60066 + ... + 60101.

It is an arithmetic number, because the mean of its divisors is an integer number (390546).

2^2163006 is an apocalyptic number.

2163006 is an abundant number, since it is smaller than the sum of its proper divisors (2523546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2163006 is a wasteful number, since it uses less digits than its factorization.

2163006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120175 (or 120172 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2163006 is about 1470.7161520837. The cubic root of 2163006 is about 129.3260187051.

Adding to 2163006 its reverse (6003612), we get a palindrome (8166618).

Subtracting 2163006 from its reverse (6003612), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 2163006 in words is "two million, one hundred sixty-three thousand, six".