199560959 has 4 divisors (see below), whose sum is σ = 214911816. Its totient is φ = 184210104.

The previous prime is 199560947. The next prime is 199560961. The reversal of 199560959 is 959065991.

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

It is not a de Polignac number, because 199560959 - 2¹⁶ = 199495423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 199560959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199560859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7675409 + ... + 7675434.

It is an arithmetic number, because the mean of its divisors is an integer number (53727954).

Almost surely, 2^199560959 is an apocalyptic number.

199560959 is a deficient number, since it is larger than the sum of its proper divisors (15350857).

199560959 is a wasteful number, since it uses less digits than its factorization.

199560959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15350856.

The product of its (nonzero) digits is 984150, while the sum is 53.

The square root of 199560959 is about 14126.6046522156. The cubic root of 199560959 is about 584.3753129113.

The spelling of 199560959 in words is "one hundred ninety-nine million, five hundred sixty thousand, nine hundred fifty-nine".