173023129 has 2 divisors, whose sum is σ = 173023130. Its totient is φ = 173023128.

The previous prime is 173023091. The next prime is 173023141. The reversal of 173023129 is 921320371.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172213129 + 810000 = 13123^2 + 900^2 .

It is a cyclic number.

It is not a de Polignac number, because 173023129 - 2¹¹ = 173021081 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 173023097 and 173023106.

It is not a weakly prime, because it can be changed into another prime (173020129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86511564 + 86511565.

It is an arithmetic number, because the mean of its divisors is an integer number (86511565).

Almost surely, 2^173023129 is an apocalyptic number.

It is an amenable number.

173023129 is a deficient number, since it is larger than the sum of its proper divisors (1).

173023129 is an equidigital number, since it uses as much as digits as its factorization.

173023129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 173023129 is about 13153.8256412346. The cubic root of 173023129 is about 557.2302960570.

The spelling of 173023129 in words is "one hundred seventy-three million, twenty-three thousand, one hundred twenty-nine".