198119811 has 8 divisors (see below), whose sum is σ = 264570624. Its totient is φ = 131874440.

The previous prime is 198119807. The next prime is 198119813. The reversal of 198119811 is 118911891.

198119811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 198119811 - 2² = 198119807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 198119811.

It is not an unprimeable number, because it can be changed into a prime (198119813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49095 + ... + 52976.

It is an arithmetic number, because the mean of its divisors is an integer number (33071328).

Almost surely, 2^198119811 is an apocalyptic number.

198119811 is a deficient number, since it is larger than the sum of its proper divisors (66450813).

198119811 is a wasteful number, since it uses less digits than its factorization.

198119811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102721.

The product of its digits is 5184, while the sum is 39.

The square root of 198119811 is about 14075.5039341403. The cubic root of 198119811 is about 582.9652061729.

The spelling of 198119811 in words is "one hundred ninety-eight million, one hundred nineteen thousand, eight hundred eleven".