158205 has 16 divisors (see below), whose sum is σ = 259200. Its totient is φ = 82368.

The previous prime is 158201. The next prime is 158209. The reversal of 158205 is 502851.

It is an interprime number because it is at equal distance from previous prime (158201) and next prime (158209).

It is not a de Polignac number, because 158205 - 2² = 158201 is a prime.

158205 is a lucky 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 in 15 ways as a sum of consecutive naturals, for example, 696 + ... + 894.

It is an arithmetic number, because the mean of its divisors is an integer number (16200).

2¹⁵⁸²⁰⁵ is an apocalyptic number.

158205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

158205 is a deficient number, since it is larger than the sum of its proper divisors (100995).

158205 is a wasteful number, since it uses less digits than its factorization.

158205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 158205 is about 397.7499214331. The cubic root of 158205 is about 54.0845725523.

It can be divided in two parts, 158 and 205, that added together give a palindrome (363).

The spelling of 158205 in words is "one hundred fifty-eight thousand, two hundred five".