199039101 has 4 divisors (see below), whose sum is σ = 265385472. Its totient is φ = 132692732.

The previous prime is 199039091. The next prime is 199039103. The reversal of 199039101 is 101930991.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 199039101 - 2¹¹ = 199037053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199039103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33173181 + ... + 33173186.

It is an arithmetic number, because the mean of its divisors is an integer number (66346368).

Almost surely, 2^199039101 is an apocalyptic number.

It is an amenable number.

199039101 is a deficient number, since it is larger than the sum of its proper divisors (66346371).

199039101 is an equidigital number, since it uses as much as digits as its factorization.

199039101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66346370.

The product of its (nonzero) digits is 2187, while the sum is 33.

The square root of 199039101 is about 14108.1218097945. The cubic root of 199039101 is about 583.8654818170.

The spelling of 199039101 in words is "one hundred ninety-nine million, thirty-nine thousand, one hundred one".