158159 has 4 divisors (see below), whose sum is σ = 159720. Its totient is φ = 156600.

The previous prime is 158143. The next prime is 158161. The reversal of 158159 is 951851.

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

It is a cyclic number.

It is not a de Polignac number, because 158159 - 2⁴ = 158143 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158129) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 617 + ... + 834.

It is an arithmetic number, because the mean of its divisors is an integer number (39930).

2¹⁵⁸¹⁵⁹ is an apocalyptic number.

158159 is a deficient number, since it is larger than the sum of its proper divisors (1561).

158159 is a wasteful number, since it uses less digits than its factorization.

158159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560.

The product of its digits is 1800, while the sum is 29.

The square root of 158159 is about 397.6920919505. The cubic root of 158159 is about 54.0793301316.

The spelling of 158159 in words is "one hundred fifty-eight thousand, one hundred fifty-nine".