158206 has 4 divisors (see below), whose sum is σ = 237312. Its totient is φ = 79102.

The previous prime is 158201. The next prime is 158209. The reversal of 158206 is 602851.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 602851 = 19 ⋅31729.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39550 + ... + 39553.

It is an arithmetic number, because the mean of its divisors is an integer number (59328).

2¹⁵⁸²⁰⁶ is an apocalyptic number.

158206 is a deficient number, since it is larger than the sum of its proper divisors (79106).

158206 is an equidigital number, since it uses as much as digits as its factorization.

158206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79105.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 158206 is about 397.7511785023. The cubic root of 158206 is about 54.0846865067.

The spelling of 158206 in words is "one hundred fifty-eight thousand, two hundred six".