199442659 has 8 divisors (see below), whose sum is σ = 214925312. Its totient is φ = 183980160.

The previous prime is 199442651. The next prime is 199442669. The reversal of 199442659 is 956244991.

199442659 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 199442659 - 2³ = 199442651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199442651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20254 + ... + 28444.

It is an arithmetic number, because the mean of its divisors is an integer number (26865664).

Almost surely, 2^199442659 is an apocalyptic number.

199442659 is a deficient number, since it is larger than the sum of its proper divisors (15482653).

199442659 is a wasteful number, since it uses less digits than its factorization.

199442659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10077.

The product of its digits is 699840, while the sum is 49.

The square root of 199442659 is about 14122.4168965514. The cubic root of 199442659 is about 584.2598172672.

The spelling of 199442659 in words is "one hundred ninety-nine million, four hundred forty-two thousand, six hundred fifty-nine".