158422 has 16 divisors (see below), whose sum is σ = 273600. Its totient is φ = 68040.

The previous prime is 158419. The next prime is 158429. The reversal of 158422 is 224851.

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 = 158393 and 158402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158429) 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, 229 + ... + 607.

It is an arithmetic number, because the mean of its divisors is an integer number (17100).

2¹⁵⁸⁴²² is an apocalyptic number.

158422 is a deficient number, since it is larger than the sum of its proper divisors (115178).

158422 is a wasteful number, since it uses less digits than its factorization.

158422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411.

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

The square root of 158422 is about 398.0226124230. The cubic root of 158422 is about 54.1092894077.

It can be divided in two parts, 15842 and 2, that multiplied together give a square (31684 = 178²).

The spelling of 158422 in words is "one hundred fifty-eight thousand, four hundred twenty-two".