191128196 has 12 divisors (see below), whose sum is σ = 382256448. Its totient is φ = 81912072.

The previous prime is 191128193. The next prime is 191128207. The reversal of 191128196 is 691821191.

191128196 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (191128193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3412976 + ... + 3413031.

It is an arithmetic number, because the mean of its divisors is an integer number (31854704).

Almost surely, 2^191128196 is an apocalyptic number.

It is an amenable number.

191128196 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

191128196 is a wasteful number, since it uses less digits than its factorization.

191128196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6826018 (or 6826016 counting only the distinct ones).

The product of its digits is 7776, while the sum is 38.

The square root of 191128196 is about 13824.9121516196. The cubic root of 191128196 is about 576.0253372664.

The spelling of 191128196 in words is "one hundred ninety-one million, one hundred twenty-eight thousand, one hundred ninety-six".