158312 has 32 divisors (see below), whose sum is σ = 371520. Its totient is φ = 61440.

The previous prime is 158303. The next prime is 158329. The reversal of 158312 is 213851.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488 + ... + 744.

It is an arithmetic number, because the mean of its divisors is an integer number (11610).

2¹⁵⁸³¹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185760).

158312 is an abundant number, since it is smaller than the sum of its proper divisors (213208).

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

158312 is a wasteful number, since it uses less digits than its factorization.

158312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 277 counting only the distinct ones).

The product of its digits is 240, while the sum is 20.

The square root of 158312 is about 397.8844053240. The cubic root of 158312 is about 54.0967629489.

The spelling of 158312 in words is "one hundred fifty-eight thousand, three hundred twelve".