2160100 has 18 divisors (see below), whose sum is σ = 4687634. Its totient is φ = 864000.

The previous prime is 2160061. The next prime is 2160101. The reversal of 2160100 is 10612.

2160100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 459684 + 1700416 = 678^2 + 1304^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10701 + ... + 10900.

2^2160100 is an apocalyptic number.

2160100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2160100 is an abundant number, since it is smaller than the sum of its proper divisors (2527534).

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

2160100 is a wasteful number, since it uses less digits than its factorization.

2160100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21615 (or 21608 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 2160100 is about 1469.7278659670. The cubic root of 2160100 is about 129.2680762181.

Adding to 2160100 its reverse (10612), we get a palindrome (2170712).

The spelling of 2160100 in words is "two million, one hundred sixty thousand, one hundred".