199852123 has 2 divisors, whose sum is σ = 199852124. Its totient is φ = 199852122.

The previous prime is 199852117. The next prime is 199852171. The reversal of 199852123 is 321258991.

199852123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (321258991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199852123 - 2⁹ = 199851611 is a prime.

It is not a weakly prime, because it can be changed into another prime (199852423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99926061 + 99926062.

It is an arithmetic number, because the mean of its divisors is an integer number (99926062).

Almost surely, 2^199852123 is an apocalyptic number.

199852123 is a deficient number, since it is larger than the sum of its proper divisors (1).

199852123 is an equidigital number, since it uses as much as digits as its factorization.

199852123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 40.

The square root of 199852123 is about 14136.9064154786. The cubic root of 199852123 is about 584.6593804480.

The spelling of 199852123 in words is "one hundred ninety-nine million, eight hundred fifty-two thousand, one hundred twenty-three".