42000199 has 2 divisors, whose sum is σ = 42000200. Its totient is φ = 42000198.

The previous prime is 42000191. The next prime is 42000247. The reversal of 42000199 is 99100024.

42000199 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 a cyclic number.

It is not a de Polignac number, because 42000199 - 2³ = 42000191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42000191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21000099 + 21000100.

It is an arithmetic number, because the mean of its divisors is an integer number (21000100).

Almost surely, 2^42000199 is an apocalyptic number.

42000199 is a deficient number, since it is larger than the sum of its proper divisors (1).

42000199 is an equidigital number, since it uses as much as digits as its factorization.

42000199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 42000199 is about 6480.7560515730. The cubic root of 42000199 is about 347.6032134793.

The spelling of 42000199 in words is "forty-two million, one hundred ninety-nine", and thus it is an aban number.