158243 has 2 divisors, whose sum is σ = 158244. Its totient is φ = 158242.

The previous prime is 158233. The next prime is 158261. The reversal of 158243 is 342851.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 158243 - 2⁴ = 158227 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (158233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79121 + 79122.

It is an arithmetic number, because the mean of its divisors is an integer number (79122).

2¹⁵⁸²⁴³ is an apocalyptic number.

158243 is a deficient number, since it is larger than the sum of its proper divisors (1).

158243 is an equidigital number, since it uses as much as digits as its factorization.

158243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 23.

The square root of 158243 is about 397.7976872733. The cubic root of 158243 is about 54.0889024812.

The spelling of 158243 in words is "one hundred fifty-eight thousand, two hundred forty-three".