2173008100 has 36 divisors (see below), whose sum is σ = 4752584704. Its totient is φ = 862354080.

The previous prime is 2173008091. The next prime is 2173008127. The reversal of 2173008100 is 18003712.

It is a super-2 number, since 2×2173008100² = 9443928405331220000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72852 + ... + 98251.

Almost surely, 2^2173008100 is an apocalyptic number.

2173008100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2173008100 is an abundant number, since it is smaller than the sum of its proper divisors (2579576604).

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

2173008100 is a wasteful number, since it uses less digits than its factorization.

2173008100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171244 (or 171237 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 2173008100 is about 46615.5349642155. The cubic root of 2173008100 is about 1295.2505391240.

The spelling of 2173008100 in words is "two billion, one hundred seventy-three million, eight thousand, one hundred".