158823 has 12 divisors (see below), whose sum is σ = 262288. Its totient is φ = 90720.

The previous prime is 158803. The next prime is 158843. The reversal of 158823 is 328851.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (158803) and next prime (158843).

It is not a de Polignac number, because 158823 - 2⁵ = 158791 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 (158803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1198 + ... + 1323.

2¹⁵⁸⁸²³ is an apocalyptic number.

158823 is a deficient number, since it is larger than the sum of its proper divisors (103465).

158823 is a wasteful number, since it uses less digits than its factorization.

158823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2534 (or 2531 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 158823 is about 398.5260342813. The cubic root of 158823 is about 54.1549050071.

The spelling of 158823 in words is "one hundred fifty-eight thousand, eight hundred twenty-three".