199180043 has 2 divisors, whose sum is σ = 199180044. Its totient is φ = 199180042.

The previous prime is 199180001. The next prime is 199180049. The reversal of 199180043 is 340081991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199180043 - 2¹⁶ = 199114507 is a prime.

It is a super-3 number, since 3×199180043³ (a number of 26 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 199179985 and 199180012.

It is not a weakly prime, because it can be changed into another prime (199180049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99590021 + 99590022.

It is an arithmetic number, because the mean of its divisors is an integer number (99590022).

Almost surely, 2^199180043 is an apocalyptic number.

199180043 is a deficient number, since it is larger than the sum of its proper divisors (1).

199180043 is an equidigital number, since it uses as much as digits as its factorization.

199180043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 199180043 is about 14113.1159918708. The cubic root of 199180043 is about 584.0032633755.

The spelling of 199180043 in words is "one hundred ninety-nine million, one hundred eighty thousand, forty-three".