198055312 has 40 divisors (see below), whose sum is σ = 472289216. Its totient is φ = 78350976.

The previous prime is 198055309. The next prime is 198055313. The reversal of 198055312 is 213550891.

198055312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×198055312² = 78451813222834688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (198055313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66558 + ... + 69469.

Almost surely, 2^198055312 is an apocalyptic number.

It is an amenable number.

198055312 is an abundant number, since it is smaller than the sum of its proper divisors (274233904).

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

198055312 is a wasteful number, since it uses less digits than its factorization.

198055312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136055 (or 136049 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 198055312 is about 14073.2125685644. The cubic root of 198055312 is about 582.9019367910.

The spelling of 198055312 in words is "one hundred ninety-eight million, fifty-five thousand, three hundred twelve".