159609939 has 8 divisors (see below), whose sum is σ = 220151760. Its totient is φ = 102737376.

The previous prime is 159609929. The next prime is 159610001. The reversal of 159609939 is 939906951.

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

It is not a de Polignac number, because 159609939 - 2⁵ = 159609907 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 159609891 and 159609900.

It is not an unprimeable number, because it can be changed into a prime (159609929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 917212 + ... + 917385.

It is an arithmetic number, because the mean of its divisors is an integer number (27518970).

Almost surely, 2^159609939 is an apocalyptic number.

159609939 is a deficient number, since it is larger than the sum of its proper divisors (60541821).

159609939 is a wasteful number, since it uses less digits than its factorization.

159609939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834629.

The product of its (nonzero) digits is 590490, while the sum is 51.

The square root of 159609939 is about 12633.6827172444. The cubic root of 159609939 is about 542.4420024784.

The spelling of 159609939 in words is "one hundred fifty-nine million, six hundred nine thousand, nine hundred thirty-nine".