159375217 has 2 divisors, whose sum is σ = 159375218. Its totient is φ = 159375216.

The previous prime is 159375199. The next prime is 159375233. The reversal of 159375217 is 712573951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154778481 + 4596736 = 12441^2 + 2144^2 .

It is a cyclic number.

It is not a de Polignac number, because 159375217 - 2⁷ = 159375089 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 159375217.

It is not a weakly prime, because it can be changed into another prime (159375277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79687608 + 79687609.

It is an arithmetic number, because the mean of its divisors is an integer number (79687609).

Almost surely, 2^159375217 is an apocalyptic number.

It is an amenable number.

159375217 is a deficient number, since it is larger than the sum of its proper divisors (1).

159375217 is an equidigital number, since it uses as much as digits as its factorization.

159375217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66150, while the sum is 40.

The square root of 159375217 is about 12624.3897674303. The cubic root of 159375217 is about 542.1759673823.

The spelling of 159375217 in words is "one hundred fifty-nine million, three hundred seventy-five thousand, two hundred seventeen".