159654 has 32 divisors (see below), whose sum is σ = 362880. Its totient is φ = 46400.

The previous prime is 159631. The next prime is 159667. The reversal of 159654 is 456951.

Added to its reverse (456951) it gives a triangular number (616605 = T₁₁₁₀).

It is a congruent number.

It is an unprimeable number.

159654 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2677 + ... + 2735.

It is an arithmetic number, because the mean of its divisors is an integer number (11340).

159654 is a Friedman number, since it can be written as 451*59*6, using all its digits and the basic arithmetic operations.

2¹⁵⁹⁶⁵⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 159654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181440).

159654 is an abundant number, since it is smaller than the sum of its proper divisors (203226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

159654 is a wasteful number, since it uses less digits than its factorization.

159654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116.

The product of its digits is 5400, while the sum is 30.

The square root of 159654 is about 399.5672659265. The cubic root of 159654 is about 54.2491912357.

Adding to 159654 its reverse (456951), we get a triangular number (616605 = T₁₁₁₀).

It can be divided in two parts, 15 and 9654, that added together give a palindrome (9669).

The spelling of 159654 in words is "one hundred fifty-nine thousand, six hundred fifty-four".