199089100 has 36 divisors (see below), whose sum is σ = 493742704. Its totient is φ = 68258880.

The previous prime is 199089083. The next prime is 199089101. The reversal of 199089100 is 1980991.

It is a self number, because there is not a number n which added to its sum of digits gives 199089100.

It is not an unprimeable number, because it can be changed into a prime (199089101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141507 + ... + 142906.

Almost surely, 2^199089100 is an apocalyptic number.

199089100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199089100 is an abundant number, since it is smaller than the sum of its proper divisors (294653604).

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

199089100 is a wasteful number, since it uses less digits than its factorization.

199089100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284434 (or 284427 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 37.

The square root of 199089100 is about 14109.8936920163. The cubic root of 199089100 is about 583.9143670963.

The spelling of 199089100 in words is "one hundred ninety-nine million, eighty-nine thousand, one hundred".