159863 has 4 divisors (see below), whose sum is σ = 174408. Its totient is φ = 145320.

The previous prime is 159857. The next prime is 159869. The reversal of 159863 is 368951.

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

It is an interprime number because it is at equal distance from previous prime (159857) and next prime (159869).

It is a cyclic number.

It is not a de Polignac number, because 159863 - 2⁶ = 159799 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 (159869) 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, 7256 + ... + 7277.

It is an arithmetic number, because the mean of its divisors is an integer number (43602).

2¹⁵⁹⁸⁶³ is an apocalyptic number.

159863 is a deficient number, since it is larger than the sum of its proper divisors (14545).

159863 is a wasteful number, since it uses less digits than its factorization.

159863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14544.

The product of its digits is 6480, while the sum is 32.

The square root of 159863 is about 399.8287133261. The cubic root of 159863 is about 54.2728531068.

Adding to 159863 its sum of digits (32), we get a triangular number (159895 = T₅₆₅).

It can be divided in two parts, 1598 and 63, that added together give a palindrome (1661).

The spelling of 159863 in words is "one hundred fifty-nine thousand, eight hundred sixty-three".