159893 has 4 divisors (see below), whose sum is σ = 161280. Its totient is φ = 158508.

The previous prime is 159871. The next prime is 159899. The reversal of 159893 is 398951.

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, and also an emirpimes, since its reverse is a distinct semiprime: 398951 = 7 ⋅56993.

It is a cyclic number.

It is not a de Polignac number, because 159893 - 2¹² = 155797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159899) 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, 503 + ... + 756.

It is an arithmetic number, because the mean of its divisors is an integer number (40320).

2¹⁵⁹⁸⁹³ is an apocalyptic number.

It is an amenable number.

159893 is a deficient number, since it is larger than the sum of its proper divisors (1387).

159893 is a wasteful number, since it uses less digits than its factorization.

159893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386.

The product of its digits is 9720, while the sum is 35.

The square root of 159893 is about 399.8662276312. The cubic root of 159893 is about 54.2762478547.

The spelling of 159893 in words is "one hundred fifty-nine thousand, eight hundred ninety-three".