173057 has 4 divisors (see below), whose sum is σ = 175956. Its totient is φ = 170160.

The previous prime is 173053. The next prime is 173059. The reversal of 173057 is 750371.

It is a happy number.

It is a Cunningham number, because it is equal to 416²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 750371 = 431 ⋅1741.

It can be written as a sum of positive squares in 2 ways, for example, as 5776 + 167281 = 76^2 + 409^2 .

It is a cyclic number.

It is not a de Polignac number, because 173057 - 2² = 173053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (173053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1358 + ... + 1479.

It is an arithmetic number, because the mean of its divisors is an integer number (43989).

It is a Proth number, since it is equal to 169 ⋅ 2¹⁰ + 1 and 169 < 2¹⁰.

2¹⁷³⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

173057 is a deficient number, since it is larger than the sum of its proper divisors (2899).

173057 is an equidigital number, since it uses as much as digits as its factorization.

173057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2898.

The product of its (nonzero) digits is 735, while the sum is 23.

The square root of 173057 is about 416.0012019213. The cubic root of 173057 is about 55.7266654811.

The spelling of 173057 in words is "one hundred seventy-three thousand, fifty-seven".