199241911 has 4 divisors (see below), whose sum is σ = 217354824. Its totient is φ = 181129000.

The previous prime is 199241881. The next prime is 199241947. The reversal of 199241911 is 119142991.

199241911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 199241911 - 2¹¹ = 199239863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199241981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9056440 + ... + 9056461.

It is an arithmetic number, because the mean of its divisors is an integer number (54338706).

Almost surely, 2^199241911 is an apocalyptic number.

199241911 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

199241911 is a deficient number, since it is larger than the sum of its proper divisors (18112913).

199241911 is a wasteful number, since it uses less digits than its factorization.

199241911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18112912.

The product of its digits is 5832, while the sum is 37.

The square root of 199241911 is about 14115.3076835045. The cubic root of 199241911 is about 584.0637235385.

The spelling of 199241911 in words is "one hundred ninety-nine million, two hundred forty-one thousand, nine hundred eleven".