158266 has 4 divisors (see below), whose sum is σ = 237402. Its totient is φ = 79132.

The previous prime is 158261. The next prime is 158269. The reversal of 158266 is 662851.

158266 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: 662851 = 7 ⋅94693.

It can be written as a sum of positive squares in only one way, i.e., 103041 + 55225 = 321^2 + 235^2 .

It is not an unprimeable number, because it can be changed into a prime (158261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39565 + ... + 39568.

2¹⁵⁸²⁶⁶ is an apocalyptic number.

158266 is a deficient number, since it is larger than the sum of its proper divisors (79136).

158266 is an equidigital number, since it uses as much as digits as its factorization.

158266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79135.

The product of its digits is 2880, while the sum is 28.

The square root of 158266 is about 397.8265953905. The cubic root of 158266 is about 54.0915228910.

It can be divided in two parts, 158 and 266, that added together give a palindrome (424).

The spelling of 158266 in words is "one hundred fifty-eight thousand, two hundred sixty-six".