159949 has 4 divisors (see below), whose sum is σ = 162720. Its totient is φ = 157180.

The previous prime is 159937. The next prime is 159977. The reversal of 159949 is 949951.

159949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 159949 - 2⁹ = 159437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1297 + ... + 1414.

It is an arithmetic number, because the mean of its divisors is an integer number (40680).

2¹⁵⁹⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

159949 is a deficient number, since it is larger than the sum of its proper divisors (2771).

159949 is an equidigital number, since it uses as much as digits as its factorization.

159949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770.

The product of its digits is 14580, while the sum is 37.

The square root of 159949 is about 399.9362449191. The cubic root of 159949 is about 54.2825835815.

The spelling of 159949 in words is "one hundred fifty-nine thousand, nine hundred forty-nine".