158500 has 24 divisors (see below), whose sum is σ = 347256. Its totient is φ = 63200.

The previous prime is 158489. The next prime is 158507. The reversal of 158500 is 5851.

It can be written as a sum of positive squares in 4 ways, for example, as 34596 + 123904 = 186^2 + 352^2 .

It is not an unprimeable number, because it can be changed into a prime (158507) by changing a digit.

158500 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342 + ... + 658.

It is an arithmetic number, because the mean of its divisors is an integer number (14469).

2¹⁵⁸⁵⁰⁰ is an apocalyptic number.

158500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173628).

158500 is an abundant number, since it is smaller than the sum of its proper divisors (188756).

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

158500 is a wasteful number, since it uses less digits than its factorization.

158500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 158500 is about 398.1205847479. The cubic root of 158500 is about 54.1181682925.

It can be divided in two parts, 15 and 8500, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 158500 in words is "one hundred fifty-eight thousand, five hundred".