191047198 has 8 divisors (see below), whose sum is σ = 292668192. Its totient is φ = 93491136.

The previous prime is 191047189. The next prime is 191047211. The reversal of 191047198 is 891740191.

191047198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 191047198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1016115 + ... + 1016302.

It is an arithmetic number, because the mean of its divisors is an integer number (36583524).

Almost surely, 2^191047198 is an apocalyptic number.

191047198 is a deficient number, since it is larger than the sum of its proper divisors (101620994).

191047198 is a wasteful number, since it uses less digits than its factorization.

191047198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032466.

The product of its (nonzero) digits is 18144, while the sum is 40.

The square root of 191047198 is about 13821.9824193203. The cubic root of 191047198 is about 575.9439547289.

The spelling of 191047198 in words is "one hundred ninety-one million, forty-seven thousand, one hundred ninety-eight".