173102389 has 4 divisors (see below), whose sum is σ = 174264300. Its totient is φ = 171940480.

The previous prime is 173102383. The next prime is 173102411. The reversal of 173102389 is 983201371.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 983201371 = 1361 ⋅722411.

It can be written as a sum of positive squares in 2 ways, for example, as 15800625 + 157301764 = 3975^2 + 12542^2 .

It is a cyclic number.

It is not a de Polignac number, because 173102389 - 2¹³ = 173094197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173102383) 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 in 3 ways as a sum of consecutive naturals, for example, 580732 + ... + 581029.

It is an arithmetic number, because the mean of its divisors is an integer number (43566075).

Almost surely, 2^173102389 is an apocalyptic number.

It is an amenable number.

173102389 is a deficient number, since it is larger than the sum of its proper divisors (1161911).

173102389 is a wasteful number, since it uses less digits than its factorization.

173102389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161910.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 173102389 is about 13156.8381079954. The cubic root of 173102389 is about 557.3153700993.

The spelling of 173102389 in words is "one hundred seventy-three million, one hundred two thousand, three hundred eighty-nine".