198134128 has 30 divisors (see below), whose sum is σ = 405164544. Its totient is φ = 93850272.

The previous prime is 198134081. The next prime is 198134143. The reversal of 198134128 is 821431891.

It is a super-3 number, since 3×198134128³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11376 + ... + 22927.

Almost surely, 2^198134128 is an apocalyptic number.

It is an amenable number.

198134128 is an abundant number, since it is smaller than the sum of its proper divisors (207030416).

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

198134128 is a wasteful number, since it uses less digits than its factorization.

198134128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34349 (or 34324 counting only the distinct ones).

The product of its digits is 13824, while the sum is 37.

The square root of 198134128 is about 14076.0125035466. The cubic root of 198134128 is about 582.9792483692.

The spelling of 198134128 in words is "one hundred ninety-eight million, one hundred thirty-four thousand, one hundred twenty-eight".