199060091 has 2 divisors, whose sum is σ = 199060092. Its totient is φ = 199060090.

The previous prime is 199060079. The next prime is 199060163. The reversal of 199060091 is 190060991.

It is a weak prime.

It is an emirp because it is prime and its reverse (190060991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199060091 - 2⁶ = 199060027 is a prime.

It is not a weakly prime, because it can be changed into another prime (199060291) 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, 99530045 + 99530046.

It is an arithmetic number, because the mean of its divisors is an integer number (99530046).

Almost surely, 2^199060091 is an apocalyptic number.

199060091 is a deficient number, since it is larger than the sum of its proper divisors (1).

199060091 is an equidigital number, since it uses as much as digits as its factorization.

199060091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 35.

The square root of 199060091 is about 14108.8656879283. The cubic root of 199060091 is about 583.8860052646.

The spelling of 199060091 in words is "one hundred ninety-nine million, sixty thousand, ninety-one".