199136984 has 8 divisors (see below), whose sum is σ = 373381860. Its totient is φ = 99568488.

The previous prime is 199136983. The next prime is 199136989. The reversal of 199136984 is 489631991.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199136981) 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 as a sum of consecutive naturals, namely, 12446054 + ... + 12446069.

Almost surely, 2^199136984 is an apocalyptic number.

It is an amenable number.

199136984 is a deficient number, since it is larger than the sum of its proper divisors (174244876).

199136984 is a wasteful number, since it uses less digits than its factorization.

199136984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24892129 (or 24892125 counting only the distinct ones).

The product of its digits is 419904, while the sum is 50.

The square root of 199136984 is about 14111.5904135572. The cubic root of 199136984 is about 583.9611768149.

The spelling of 199136984 in words is "one hundred ninety-nine million, one hundred thirty-six thousand, nine hundred eighty-four".