199000073 has 2 divisors, whose sum is σ = 199000074. Its totient is φ = 199000072.

The previous prime is 199000057. The next prime is 199000093. The reversal of 199000073 is 370000991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117765904 + 81234169 = 10852^2 + 9013^2 .

It is an emirp because it is prime and its reverse (370000991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199000073 - 2⁴ = 199000057 is a prime.

It is equal to p_11026577 and since 199000073 and 11026577 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (199000003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99500036 + 99500037.

It is an arithmetic number, because the mean of its divisors is an integer number (99500037).

Almost surely, 2^199000073 is an apocalyptic number.

It is an amenable number.

199000073 is a deficient number, since it is larger than the sum of its proper divisors (1).

199000073 is an equidigital number, since it uses as much as digits as its factorization.

199000073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 199000073 is about 14106.7385670820. The cubic root of 199000073 is about 583.8273174707.

The spelling of 199000073 in words is "one hundred ninety-nine million, seventy-three", and thus it is an aban number.