199881114 has 16 divisors (see below), whose sum is σ = 409059552. Its totient is φ = 65077488.

The previous prime is 199881113. The next prime is 199881119. The reversal of 199881114 is 411188991.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (199881113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387109 + ... + 387624.

It is an arithmetic number, because the mean of its divisors is an integer number (25566222).

Almost surely, 2^199881114 is an apocalyptic number.

199881114 is an abundant number, since it is smaller than the sum of its proper divisors (209178438).

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

199881114 is a wasteful number, since it uses less digits than its factorization.

199881114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774781.

The product of its digits is 20736, while the sum is 42.

The square root of 199881114 is about 14137.9317440706. The cubic root of 199881114 is about 584.6876497509.

The spelling of 199881114 in words is "one hundred ninety-nine million, eight hundred eighty-one thousand, one hundred fourteen".