170528 has 18 divisors (see below), whose sum is σ = 340389. Its totient is φ = 84096.

The previous prime is 170509. The next prime is 170537. The reversal of 170528 is 825071.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

170528 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in 2 ways, for example, as 169744 + 784 = 412^2 + 28^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=292.

It is a Duffinian number.

170528 is an undulating number in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2300 + ... + 2372.

2¹⁷⁰⁵²⁸ is an apocalyptic number.

It is an amenable number.

170528 is a deficient number, since it is larger than the sum of its proper divisors (169861).

170528 is an frugal number, since it uses more digits than its factorization.

170528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 170528 is about 412.9503602129. The cubic root of 170528 is about 55.4538750499.

Adding to 170528 its reverse (825071), we get a palindrome (995599).

The spelling of 170528 in words is "one hundred seventy thousand, five hundred twenty-eight".