199159128 has 192 divisors, whose sum is σ = 665395200. Its totient is φ = 54976320.

The previous prime is 199159021. The next prime is 199159133. The reversal of 199159128 is 821951991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 327801 + ... + 328407.

It is an arithmetic number, because the mean of its divisors is an integer number (3465600).

Almost surely, 2^199159128 is an apocalyptic number.

199159128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199159128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332697600).

199159128 is an abundant number, since it is smaller than the sum of its proper divisors (466236072).

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

199159128 is a wasteful number, since it uses less digits than its factorization.

199159128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 650 counting only the distinct ones).

The product of its digits is 58320, while the sum is 45.

The square root of 199159128 is about 14112.3749950177. The cubic root of 199159128 is about 583.9828214751.

The spelling of 199159128 in words is "one hundred ninety-nine million, one hundred fifty-nine thousand, one hundred twenty-eight".