199323955 has 16 divisors (see below), whose sum is σ = 249696000. Its totient is φ = 152570880.

The previous prime is 199323947. The next prime is 199323959. The reversal of 199323955 is 559323991.

It is not a de Polignac number, because 199323955 - 2³ = 199323947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199323959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6571 + ... + 21019.

It is an arithmetic number, because the mean of its divisors is an integer number (15606000).

Almost surely, 2^199323955 is an apocalyptic number.

199323955 is a deficient number, since it is larger than the sum of its proper divisors (50372045).

199323955 is a wasteful number, since it uses less digits than its factorization.

199323955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14574.

The product of its digits is 328050, while the sum is 46.

The square root of 199323955 is about 14118.2135909611. The cubic root of 199323955 is about 584.1438812858.

The spelling of 199323955 in words is "one hundred ninety-nine million, three hundred twenty-three thousand, nine hundred fifty-five".