199322131 has 2 divisors, whose sum is σ = 199322132. Its totient is φ = 199322130.

The previous prime is 199322113. The next prime is 199322147. The reversal of 199322131 is 131223991.

199322131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (199322113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (131223991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199322131 - 2⁷ = 199322003 is a prime.

It is a super-3 number, since 3×199322131³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 199322093 and 199322102.

It is not a weakly prime, because it can be changed into another prime (199322171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99661065 + 99661066.

It is an arithmetic number, because the mean of its divisors is an integer number (99661066).

Almost surely, 2^199322131 is an apocalyptic number.

199322131 is a deficient number, since it is larger than the sum of its proper divisors (1).

199322131 is an equidigital number, since it uses as much as digits as its factorization.

199322131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 31.

The square root of 199322131 is about 14118.1489934056. The cubic root of 199322131 is about 584.1420994600.

The spelling of 199322131 in words is "one hundred ninety-nine million, three hundred twenty-two thousand, one hundred thirty-one".