159944739 has 8 divisors (see below), whose sum is σ = 213722112. Its totient is φ = 106398600.

The previous prime is 159944677. The next prime is 159944749. The reversal of 159944739 is 937449951.

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

It is not a de Polignac number, because 159944739 - 2¹⁹ = 159420451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 159944691 and 159944700.

It is not an unprimeable number, because it can be changed into a prime (159944749) 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, 56187 + ... + 58964.

It is an arithmetic number, because the mean of its divisors is an integer number (26715264).

Almost surely, 2^159944739 is an apocalyptic number.

159944739 is a deficient number, since it is larger than the sum of its proper divisors (53777373).

159944739 is a wasteful number, since it uses less digits than its factorization.

159944739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115617.

The product of its digits is 1224720, while the sum is 51.

The square root of 159944739 is about 12646.9260692075. The cubic root of 159944739 is about 542.8210155255.

The spelling of 159944739 in words is "one hundred fifty-nine million, nine hundred forty-four thousand, seven hundred thirty-nine".