199118359 has 4 divisors (see below), whose sum is σ = 217220040. Its totient is φ = 181016680.

The previous prime is 199118357. The next prime is 199118389. The reversal of 199118359 is 953811991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 953811991 = 11 ⋅86710181.

It is a cyclic number.

It is not a de Polignac number, because 199118359 - 2¹ = 199118357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199118351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9050824 + ... + 9050845.

It is an arithmetic number, because the mean of its divisors is an integer number (54305010).

Almost surely, 2^199118359 is an apocalyptic number.

199118359 is a deficient number, since it is larger than the sum of its proper divisors (18101681).

199118359 is a wasteful number, since it uses less digits than its factorization.

199118359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18101680.

The product of its digits is 87480, while the sum is 46.

The square root of 199118359 is about 14110.9304795963. The cubic root of 199118359 is about 583.9429705601.

The spelling of 199118359 in words is "one hundred ninety-nine million, one hundred eighteen thousand, three hundred fifty-nine".