199132906 has 24 divisors (see below), whose sum is σ = 347865120. Its totient is φ = 83725320.

The previous prime is 199132891. The next prime is 199132909. The reversal of 199132906 is 609231991.

It is not an unprimeable number, because it can be changed into a prime (199132909) 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, 405321 + ... + 405811.

It is an arithmetic number, because the mean of its divisors is an integer number (14494380).

Almost surely, 2^199132906 is an apocalyptic number.

199132906 is a deficient number, since it is larger than the sum of its proper divisors (148732214).

199132906 is an frugal number, since it uses more digits than its factorization.

199132906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 40.

The square root of 199132906 is about 14111.4459216623. The cubic root of 199132906 is about 583.9571905975.

The spelling of 199132906 in words is "one hundred ninety-nine million, one hundred thirty-two thousand, nine hundred six".