198119902 has 8 divisors (see below), whose sum is σ = 297384696. Its totient is φ = 98991672.

The previous prime is 198119869. The next prime is 198119969. The reversal of 198119902 is 209911891.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 30433 + ... + 36364.

It is an arithmetic number, because the mean of its divisors is an integer number (37173087).

Almost surely, 2^198119902 is an apocalyptic number.

198119902 is a deficient number, since it is larger than the sum of its proper divisors (99264794).

198119902 is a wasteful number, since it uses less digits than its factorization.

198119902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68282.

The product of its (nonzero) digits is 11664, while the sum is 40.

The square root of 198119902 is about 14075.5071667063. The cubic root of 198119902 is about 582.9652954283.

The spelling of 198119902 in words is "one hundred ninety-eight million, one hundred nineteen thousand, nine hundred two".