198119912 has 8 divisors (see below), whose sum is σ = 371474850. Its totient is φ = 99059952.

The previous prime is 198119869. The next prime is 198119969. The reversal of 198119912 is 219911891.

It can be written as a sum of positive squares in only one way, i.e., 198077476 + 42436 = 14074^2 + 206^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 198119912.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12382487 + ... + 12382502.

Almost surely, 2^198119912 is an apocalyptic number.

It is an amenable number.

198119912 is a deficient number, since it is larger than the sum of its proper divisors (173354938).

198119912 is a wasteful number, since it uses less digits than its factorization.

198119912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24764995 (or 24764991 counting only the distinct ones).

The product of its digits is 11664, while the sum is 41.

The square root of 198119912 is about 14075.5075219333. The cubic root of 198119912 is about 582.9653052366.

The spelling of 198119912 in words is "one hundred ninety-eight million, one hundred nineteen thousand, nine hundred twelve".