199671193 has 8 divisors (see below), whose sum is σ = 203648256. Its totient is φ = 195702000.

The previous prime is 199671179. The next prime is 199671229. The reversal of 199671193 is 391176991.

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

It is a cyclic number.

It is not a de Polignac number, because 199671193 - 2⁵ = 199671161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199671793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101368 + ... + 103318.

It is an arithmetic number, because the mean of its divisors is an integer number (25456032).

Almost surely, 2^199671193 is an apocalyptic number.

It is an amenable number.

199671193 is a deficient number, since it is larger than the sum of its proper divisors (3977063).

199671193 is a wasteful number, since it uses less digits than its factorization.

199671193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3935.

The product of its digits is 91854, while the sum is 46.

The square root of 199671193 is about 14130.5057588184. The cubic root of 199671193 is about 584.4828926888.

The spelling of 199671193 in words is "one hundred ninety-nine million, six hundred seventy-one thousand, one hundred ninety-three".