158122 has 8 divisors (see below), whose sum is σ = 239076. Its totient is φ = 78432.

The previous prime is 158113. The next prime is 158129. The reversal of 158122 is 221851.

158122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 128881 + 29241 = 359^2 + 171^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 7 and base 16.

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 158122.

It is not an unprimeable number, because it can be changed into a prime (158129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118 + ... + 574.

2¹⁵⁸¹²² is an apocalyptic number.

158122 is a deficient number, since it is larger than the sum of its proper divisors (80954).

158122 is a wasteful number, since it uses less digits than its factorization.

158122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632.

The product of its digits is 160, while the sum is 19.

The square root of 158122 is about 397.6455708291. The cubic root of 158122 is about 54.0751126642.

Adding to 158122 its reverse (221851), we get a palindrome (379973).

The spelling of 158122 in words is "one hundred fifty-eight thousand, one hundred twenty-two".