158822 has 4 divisors (see below), whose sum is σ = 238236. Its totient is φ = 79410.

The previous prime is 158803. The next prime is 158843. The reversal of 158822 is 228851.

158822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 228851 = 7 ⋅32693.

It is a junction number, because it is equal to n+sod(n) for n = 158791 and 158800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39704 + ... + 39707.

It is an arithmetic number, because the mean of its divisors is an integer number (59559).

2¹⁵⁸⁸²² is an apocalyptic number.

158822 is a deficient number, since it is larger than the sum of its proper divisors (79414).

158822 is an equidigital number, since it uses as much as digits as its factorization.

158822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79413.

The product of its digits is 1280, while the sum is 26.

The square root of 158822 is about 398.5247796562. The cubic root of 158822 is about 54.1547913480.

The spelling of 158822 in words is "one hundred fifty-eight thousand, eight hundred twenty-two".