199234185 has 8 divisors (see below), whose sum is σ = 318774720. Its totient is φ = 106258224.

The previous prime is 199234151. The next prime is 199234187. The reversal of 199234185 is 581432991.

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

It is not a de Polignac number, because 199234185 - 2⁹ = 199233673 is a prime.

It is a super-2 number, since 2×199234185² = 79388520945228450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (199234187) 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 7 ways as a sum of consecutive naturals, for example, 6641125 + ... + 6641154.

It is an arithmetic number, because the mean of its divisors is an integer number (39846840).

Almost surely, 2^199234185 is an apocalyptic number.

199234185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

199234185 is a deficient number, since it is larger than the sum of its proper divisors (119540535).

199234185 is a wasteful number, since it uses less digits than its factorization.

199234185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13282287.

The product of its digits is 77760, while the sum is 42.

The square root of 199234185 is about 14115.0340063352. The cubic root of 199234185 is about 584.0561740314.

The spelling of 199234185 in words is "one hundred ninety-nine million, two hundred thirty-four thousand, one hundred eighty-five".