158224 has 40 divisors (see below), whose sum is σ = 357120. Its totient is φ = 67200.

The previous prime is 158209. The next prime is 158227. The reversal of 158224 is 422851.

It is a super-3 number, since 3×158224³ = 11883334807990272, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 158195 and 158204.

It is not an unprimeable number, because it can be changed into a prime (158227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5089 + ... + 5119.

It is an arithmetic number, because the mean of its divisors is an integer number (8928).

2¹⁵⁸²²⁴ 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 158224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178560).

158224 is an abundant number, since it is smaller than the sum of its proper divisors (198896).

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

158224 is a wasteful number, since it uses less digits than its factorization.

158224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 73 counting only the distinct ones).

The product of its digits is 640, while the sum is 22.

The square root of 158224 is about 397.7738050702. The cubic root of 158224 is about 54.0867376034.

The spelling of 158224 in words is "one hundred fifty-eight thousand, two hundred twenty-four".