2163500 has 24 divisors (see below), whose sum is σ = 4726176. Its totient is φ = 865200.

The previous prime is 2163481. The next prime is 2163503. The reversal of 2163500 is 53612.

It is not an unprimeable number, because it can be changed into a prime (2163503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1664 + ... + 2663.

It is an arithmetic number, because the mean of its divisors is an integer number (196924).

2^2163500 is an apocalyptic number.

2163500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2163500 is an abundant number, since it is smaller than the sum of its proper divisors (2562676).

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

2163500 is a wasteful number, since it uses less digits than its factorization.

2163500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4346 (or 4334 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 2163500 is about 1470.8840878873. The cubic root of 2163500 is about 129.3358633673.

The spelling of 2163500 in words is "two million, one hundred sixty-three thousand, five hundred".