159245617 has 4 divisors (see below), whose sum is σ = 159277860. Its totient is φ = 159213376.

The previous prime is 159245573. The next prime is 159245623. The reversal of 159245617 is 716542951.

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

It can be written as a sum of positive squares in 2 ways, for example, as 27363361 + 131882256 = 5231^2 + 11484^2 .

It is a cyclic number.

It is not a de Polignac number, because 159245617 - 2²³ = 150857009 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 159245617.

It is not an unprimeable number, because it can be changed into a prime (159245627) 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, 6988 + ... + 19165.

It is an arithmetic number, because the mean of its divisors is an integer number (39819465).

Almost surely, 2^159245617 is an apocalyptic number.

It is an amenable number.

159245617 is a deficient number, since it is larger than the sum of its proper divisors (32243).

159245617 is an equidigital number, since it uses as much as digits as its factorization.

159245617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32242.

The product of its digits is 75600, while the sum is 40.

The square root of 159245617 is about 12619.2558021462. The cubic root of 159245617 is about 542.0289661494.

The spelling of 159245617 in words is "one hundred fifty-nine million, two hundred forty-five thousand, six hundred seventeen".