158222 has 4 divisors (see below), whose sum is σ = 237336. Its totient is φ = 79110.

The previous prime is 158209. The next prime is 158227. The reversal of 158222 is 222851.

It is a semiprime because it is the product of two primes.

158222 is a modest number, since divided by 222 gives 158 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 158194 and 158203.

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 158222.

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 as a sum of consecutive naturals, namely, 39554 + ... + 39557.

It is an arithmetic number, because the mean of its divisors is an integer number (59334).

2¹⁵⁸²²² is an apocalyptic number.

158222 is a deficient number, since it is larger than the sum of its proper divisors (79114).

158222 is an equidigital number, since it uses as much as digits as its factorization.

158222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79113.

The product of its digits is 320, while the sum is 20.

The square root of 158222 is about 397.7712910706. The cubic root of 158222 is about 54.0865097115.

The spelling of 158222 in words is "one hundred fifty-eight thousand, two hundred twenty-two".