170545 has 8 divisors (see below), whose sum is σ = 213696. Its totient is φ = 130416.

The previous prime is 170539. The next prime is 170551. The reversal of 170545 is 545071.

It is an interprime number because it is at equal distance from previous prime (170539) and next prime (170551).

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 170545 - 2³ = 170537 is a prime.

It is a Duffinian number.

170545 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627 + ... + 856.

It is an arithmetic number, because the mean of its divisors is an integer number (26712).

2¹⁷⁰⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

170545 is a deficient number, since it is larger than the sum of its proper divisors (43151).

170545 is a wasteful number, since it uses less digits than its factorization.

170545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 170545 is about 412.9709432878. The cubic root of 170545 is about 55.4557177279.

The spelling of 170545 in words is "one hundred seventy thousand, five hundred forty-five".