199277109 has 12 divisors (see below), whose sum is σ = 287990976. Its totient is φ = 132783912.

The previous prime is 199277059. The next prime is 199277119. The reversal of 199277109 is 901772991.

It is not a de Polignac number, because 199277109 - 2¹² = 199273013 is a prime.

It is a super-2 number, since 2×199277109² = 79422732342795762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199277119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18534 + ... + 27240.

It is an arithmetic number, because the mean of its divisors is an integer number (23999248).

Almost surely, 2^199277109 is an apocalyptic number.

It is an amenable number.

199277109 is a deficient number, since it is larger than the sum of its proper divisors (88713867).

199277109 is a wasteful number, since it uses less digits than its factorization.

199277109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11256 (or 11253 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 45.

The square root of 199277109 is about 14116.5544308801. The cubic root of 199277109 is about 584.0981150049.

The spelling of 199277109 in words is "one hundred ninety-nine million, two hundred seventy-seven thousand, one hundred nine".