158540 has 12 divisors (see below), whose sum is σ = 332976. Its totient is φ = 63408.

The previous prime is 158537. The next prime is 158551. The reversal of 158540 is 45851.

158540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3944 + ... + 3983.

It is an arithmetic number, because the mean of its divisors is an integer number (27748).

2¹⁵⁸⁵⁴⁰ is an apocalyptic number.

158540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158540 is an abundant number, since it is smaller than the sum of its proper divisors (174436).

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

158540 is a wasteful number, since it uses less digits than its factorization.

158540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7936 (or 7934 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 158540 is about 398.1708176148. The cubic root of 158540 is about 54.1227204369.

The spelling of 158540 in words is "one hundred fifty-eight thousand, five hundred forty".