158532 has 24 divisors (see below), whose sum is σ = 403872. Its totient is φ = 48000.

The previous prime is 158527. The next prime is 158537. The reversal of 158532 is 235851.

It is an interprime number because it is at equal distance from previous prime (158527) and next prime (158537).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (158537) by changing a digit.

158532 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, 469 + ... + 732.

It is an arithmetic number, because the mean of its divisors is an integer number (16828).

2¹⁵⁸⁵³² is an apocalyptic number.

158532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

158532 is an abundant number, since it is smaller than the sum of its proper divisors (245340).

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

158532 is a wasteful number, since it uses less digits than its factorization.

158532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219 (or 1217 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 158532 is about 398.1607715484. The cubic root of 158532 is about 54.1218100693.

The spelling of 158532 in words is "one hundred fifty-eight thousand, five hundred thirty-two".