173289023 has 2 divisors, whose sum is σ = 173289024. Its totient is φ = 173289022.

The previous prime is 173288989. The next prime is 173289029. The reversal of 173289023 is 320982371.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 173289023 - 2¹⁸ = 173026879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (173289029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86644511 + 86644512.

It is an arithmetic number, because the mean of its divisors is an integer number (86644512).

Almost surely, 2^173289023 is an apocalyptic number.

173289023 is a deficient number, since it is larger than the sum of its proper divisors (1).

173289023 is an equidigital number, since it uses as much as digits as its factorization.

173289023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 173289023 is about 13163.9288588172. The cubic root of 173289023 is about 557.5155919413.

The spelling of 173289023 in words is "one hundred seventy-three million, two hundred eighty-nine thousand, twenty-three".