159741643 has 4 divisors (see below), whose sum is σ = 159772240. Its totient is φ = 159711048.

The previous prime is 159741623. The next prime is 159741649. The reversal of 159741643 is 346147951.

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 159741643 - 2¹⁷ = 159610571 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 159741596 and 159741605.

It is not an unprimeable number, because it can be changed into a prime (159741649) 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, 5280 + ... + 18637.

It is an arithmetic number, because the mean of its divisors is an integer number (39943060).

Almost surely, 2^159741643 is an apocalyptic number.

159741643 is a deficient number, since it is larger than the sum of its proper divisors (30597).

159741643 is an equidigital number, since it uses as much as digits as its factorization.

159741643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30596.

The product of its digits is 90720, while the sum is 40.

The square root of 159741643 is about 12638.8940576302. The cubic root of 159741643 is about 542.5911622375.

The spelling of 159741643 in words is "one hundred fifty-nine million, seven hundred forty-one thousand, six hundred forty-three".