159422593 has 4 divisors (see below), whose sum is σ = 173915568. Its totient is φ = 144929620.

The previous prime is 159422587. The next prime is 159422609. The reversal of 159422593 is 395224951.

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 de Polignac number, because none of the positive numbers 2^k-159422593 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 not an unprimeable number, because it can be changed into a prime (159422533) 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, 7246471 + ... + 7246492.

It is an arithmetic number, because the mean of its divisors is an integer number (43478892).

Almost surely, 2^159422593 is an apocalyptic number.

It is an amenable number.

159422593 is a deficient number, since it is larger than the sum of its proper divisors (14492975).

159422593 is a wasteful number, since it uses less digits than its factorization.

159422593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14492974.

The product of its digits is 97200, while the sum is 40.

The square root of 159422593 is about 12626.2659959309. The cubic root of 159422593 is about 542.2296846088.

The spelling of 159422593 in words is "one hundred fifty-nine million, four hundred twenty-two thousand, five hundred ninety-three".