158271 has 4 divisors (see below), whose sum is σ = 211032. Its totient is φ = 105512.

The previous prime is 158269. The next prime is 158293. The reversal of 158271 is 172851.

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

It is a cyclic number.

It is not a de Polignac number, because 158271 - 2¹ = 158269 is a prime.

It is a D-number.

158271 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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26376 + ... + 26381.

It is an arithmetic number, because the mean of its divisors is an integer number (52758).

2¹⁵⁸²⁷¹ is an apocalyptic number.

158271 is a deficient number, since it is larger than the sum of its proper divisors (52761).

158271 is an equidigital number, since it uses as much as digits as its factorization.

158271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52760.

The product of its digits is 560, while the sum is 24.

The square root of 158271 is about 397.8328794858. The cubic root of 158271 is about 54.0920925117.

It can be divided in two parts, 1582 and 71, that added together give a triangular number (1653 = T₅₇).

The spelling of 158271 in words is "one hundred fifty-eight thousand, two hundred seventy-one".