199899535 has 16 divisors (see below), whose sum is σ = 262053792. Its totient is φ = 145177600.

The previous prime is 199899533. The next prime is 199899541. The reversal of 199899535 is 535998991.

It is not a de Polignac number, because 199899535 - 2¹ = 199899533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 199899535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199899533) 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 15 ways as a sum of consecutive naturals, for example, 45015 + ... + 49255.

It is an arithmetic number, because the mean of its divisors is an integer number (16378362).

Almost surely, 2^199899535 is an apocalyptic number.

199899535 is a deficient number, since it is larger than the sum of its proper divisors (62154257).

199899535 is a wasteful number, since it uses less digits than its factorization.

199899535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5114.

The product of its digits is 3936600, while the sum is 58.

The square root of 199899535 is about 14138.5832034189. The cubic root of 199899535 is about 584.7056107613.

The spelling of 199899535 in words is "one hundred ninety-nine million, eight hundred ninety-nine thousand, five hundred thirty-five".