173045 has 8 divisors (see below), whose sum is σ = 211896. Its totient is φ = 135616.

The previous prime is 173039. The next prime is 173053. The reversal of 173045 is 540371.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14641 + 158404 = 121^2 + 398^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 173045 - 2⁶ = 172981 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62 + ... + 591.

It is an arithmetic number, because the mean of its divisors is an integer number (26487).

2¹⁷³⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

173045 is a deficient number, since it is larger than the sum of its proper divisors (38851).

173045 is an equidigital number, since it uses as much as digits as its factorization.

173045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 173045 is about 415.9867786361. The cubic root of 173045 is about 55.7253773979.

The spelling of 173045 in words is "one hundred seventy-three thousand, forty-five".