173326345 has 4 divisors (see below), whose sum is σ = 207991620. Its totient is φ = 138661072.

The previous prime is 173326333. The next prime is 173326369. The reversal of 173326345 is 543623371.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543623371 = 149 ⋅3648479.

It can be written as a sum of positive squares in 2 ways, for example, as 97357689 + 75968656 = 9867^2 + 8716^2 .

It is a cyclic number.

It is not a de Polignac number, because 173326345 - 2¹⁵ = 173293577 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 173326345.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17332630 + ... + 17332639.

It is an arithmetic number, because the mean of its divisors is an integer number (51997905).

Almost surely, 2^173326345 is an apocalyptic number.

It is an amenable number.

173326345 is a deficient number, since it is larger than the sum of its proper divisors (34665275).

173326345 is an equidigital number, since it uses as much as digits as its factorization.

173326345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34665274.

The product of its digits is 45360, while the sum is 34.

The square root of 173326345 is about 13165.3463684022. The cubic root of 173326345 is about 557.5556139095. Note that the first 3 decimals are identical.

The spelling of 173326345 in words is "one hundred seventy-three million, three hundred twenty-six thousand, three hundred forty-five".