199133091 has 12 divisors (see below), whose sum is σ = 302775720. Its totient is φ = 125768160.

The previous prime is 199133089. The next prime is 199133101. The reversal of 199133091 is 190331991.

It is not a de Polignac number, because 199133091 - 2¹ = 199133089 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (199133021) 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 11 ways as a sum of consecutive naturals, for example, 582090 + ... + 582431.

It is an arithmetic number, because the mean of its divisors is an integer number (25231310).

Almost surely, 2^199133091 is an apocalyptic number.

199133091 is a deficient number, since it is larger than the sum of its proper divisors (103642629).

199133091 is a wasteful number, since it uses less digits than its factorization.

199133091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164546 (or 1164543 counting only the distinct ones).

The product of its (nonzero) digits is 6561, while the sum is 36.

The square root of 199133091 is about 14111.4524766234. The cubic root of 199133091 is about 583.9573714349.

The spelling of 199133091 in words is "one hundred ninety-nine million, one hundred thirty-three thousand, ninety-one".