158022 has 12 divisors (see below), whose sum is σ = 342420. Its totient is φ = 52668.

The previous prime is 158017. The next prime is 158029. The reversal of 158022 is 220851.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 8779 = 158022 / (1 + 5 + 8 + 0 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 157986 and 158004.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 158022.

It is not an unprimeable number, because it can be changed into a prime (158029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4372 + ... + 4407.

It is an arithmetic number, because the mean of its divisors is an integer number (28535).

2¹⁵⁸⁰²² is an apocalyptic number.

158022 is an abundant number, since it is smaller than the sum of its proper divisors (184398).

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

158022 is a wasteful number, since it uses less digits than its factorization.

158022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8787 (or 8784 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 158022 is about 397.5198108271. The cubic root of 158022 is about 54.0637108108.

Adding to 158022 its reverse (220851), we get a palindrome (378873).

The spelling of 158022 in words is "one hundred fifty-eight thousand, twenty-two".