2163000 has 128 divisors (see below), whose sum is σ = 7787520. Its totient is φ = 489600.

The previous prime is 2162977. The next prime is 2163011. The reversal of 2163000 is 3612.

2163000 = T₁₂₀ + T₁₂₁ + ... + T₂₄₄.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20949 + ... + 21051.

It is an arithmetic number, because the mean of its divisors is an integer number (60840).

2^2163000 is an apocalyptic number.

2163000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2163000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3893760).

2163000 is an abundant number, since it is smaller than the sum of its proper divisors (5624520).

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

2163000 is a wasteful number, since it uses less digits than its factorization.

2163000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 120 counting only the distinct ones).

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

The square root of 2163000 is about 1470.7141122598. The cubic root of 2163000 is about 129.3258991251.

Adding to 2163000 its reverse (3612), we get a palindrome (2166612).

The spelling of 2163000 in words is "two million, one hundred sixty-three thousand".