199160321 has 4 divisors (see below), whose sum is σ = 210875652. Its totient is φ = 187444992.

The previous prime is 199160317. The next prime is 199160327. The reversal of 199160321 is 123061991.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 157377025 + 41783296 = 12545^2 + 6464^2 .

It is not a de Polignac number, because 199160321 - 2² = 199160317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199160327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5857640 + ... + 5857673.

It is an arithmetic number, because the mean of its divisors is an integer number (52718913).

Almost surely, 2^199160321 is an apocalyptic number.

It is an amenable number.

199160321 is a deficient number, since it is larger than the sum of its proper divisors (11715331).

199160321 is a wasteful number, since it uses less digits than its factorization.

199160321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11715330.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 199160321 is about 14112.4172628221. The cubic root of 199160321 is about 583.9839875277.

The spelling of 199160321 in words is "one hundred ninety-nine million, one hundred sixty thousand, three hundred twenty-one".