199071105 has 16 divisors (see below), whose sum is σ = 337250304. Its totient is φ = 99925760.

The previous prime is 199071077. The next prime is 199071143. The reversal of 199071105 is 501170991.

It is a happy number.

It is not a de Polignac number, because 199071105 - 2⁹ = 199070593 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390081 + ... + 390590.

It is an arithmetic number, because the mean of its divisors is an integer number (21078144).

Almost surely, 2^199071105 is an apocalyptic number.

199071105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

199071105 is a deficient number, since it is larger than the sum of its proper divisors (138179199).

199071105 is a wasteful number, since it uses less digits than its factorization.

199071105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780696.

The product of its (nonzero) digits is 2835, while the sum is 33.

The square root of 199071105 is about 14109.2560044816. The cubic root of 199071105 is about 583.8967738753.

It can be divided in two parts, 19907 and 1105, that added together give a palindrome (21012).

The spelling of 199071105 in words is "one hundred ninety-nine million, seventy-one thousand, one hundred five".