170455 has 8 divisors (see below), whose sum is σ = 207792. Its totient is φ = 134208.

The previous prime is 170447. The next prime is 170473. The reversal of 170455 is 554071.

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 170455 - 2³ = 170447 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

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, 132 + ... + 598.

It is an arithmetic number, because the mean of its divisors is an integer number (25974).

2¹⁷⁰⁴⁵⁵ is an apocalyptic number.

170455 is a deficient number, since it is larger than the sum of its proper divisors (37337).

170455 is an equidigital number, since it uses as much as digits as its factorization.

170455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545.

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

The square root of 170455 is about 412.8619624039. The cubic root of 170455 is about 55.4459609817.

It can be divided in two parts, 170 and 455, that added together give a 4-th power (625 = 5⁴).

The spelling of 170455 in words is "one hundred seventy thousand, four hundred fifty-five".