158899 has 8 divisors (see below), whose sum is σ = 181440. Its totient is φ = 137856.

The previous prime is 158881. The next prime is 158909. The reversal of 158899 is 998851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158899 - 2⁵ = 158867 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (158849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139 + ... + 580.

It is an arithmetic number, because the mean of its divisors is an integer number (22680).

2¹⁵⁸⁸⁹⁹ is an apocalyptic number.

158899 is a deficient number, since it is larger than the sum of its proper divisors (22541).

158899 is a wasteful number, since it uses less digits than its factorization.

158899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749.

The product of its digits is 25920, while the sum is 40.

The square root of 158899 is about 398.6213742388. The cubic root of 158899 is about 54.1635417001.

The spelling of 158899 in words is "one hundred fifty-eight thousand, eight hundred ninety-nine".