158129 has 2 divisors, whose sum is σ = 158130. Its totient is φ = 158128.

The previous prime is 158113. The next prime is 158141. The reversal of 158129 is 921851.

It is a happy number.

158129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123904 + 34225 = 352^2 + 185^2 .

It is a cyclic number.

It is not a de Polignac number, because 158129 - 2⁴ = 158113 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 158098 and 158107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79064 + 79065.

It is an arithmetic number, because the mean of its divisors is an integer number (79065).

2¹⁵⁸¹²⁹ is an apocalyptic number.

It is an amenable number.

158129 is a deficient number, since it is larger than the sum of its proper divisors (1).

158129 is an equidigital number, since it uses as much as digits as its factorization.

158129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 26.

The square root of 158129 is about 397.6543725398. The cubic root of 158129 is about 54.0759106139.

The spelling of 158129 in words is "one hundred fifty-eight thousand, one hundred twenty-nine".