159639371 has 4 divisors (see below), whose sum is σ = 160466712. Its totient is φ = 158812032.

The previous prime is 159639331. The next prime is 159639373. The reversal of 159639371 is 173936951.

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

It is a cyclic number.

It is not a de Polignac number, because 159639371 - 2¹⁴ = 159622987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159639373) 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, 413381 + ... + 413766.

It is an arithmetic number, because the mean of its divisors is an integer number (40116678).

Almost surely, 2^159639371 is an apocalyptic number.

159639371 is a deficient number, since it is larger than the sum of its proper divisors (827341).

159639371 is an equidigital number, since it uses as much as digits as its factorization.

159639371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827340.

The product of its digits is 153090, while the sum is 44.

The square root of 159639371 is about 12634.8474862184. The cubic root of 159639371 is about 542.4753424486.

The spelling of 159639371 in words is "one hundred fifty-nine million, six hundred thirty-nine thousand, three hundred seventy-one".