100899100 has 18 divisors (see below), whose sum is σ = 218951264. Its totient is φ = 40359600.

The previous prime is 100899089. The next prime is 100899143. The reversal of 100899100 is 1998001.

100899100 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

100899100 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

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, 504396 + ... + 504595.

Almost surely, 2^100899100 is an apocalyptic number.

100899100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100899100 is an abundant number, since it is smaller than the sum of its proper divisors (118052164).

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

100899100 is a wasteful number, since it uses less digits than its factorization.

100899100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009005 (or 1008998 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 100899100 is about 10044.8544041215. The cubic root of 100899100 is about 465.5458191560.

The spelling of 100899100 in words is "one hundred million, eight hundred ninety-nine thousand, one hundred".