170120 has 16 divisors (see below), whose sum is σ = 382860. Its totient is φ = 68032.

The previous prime is 170111. The next prime is 170123. The reversal of 170120 is 21071.

It can be written as a sum of positive squares in 2 ways, for example, as 155236 + 14884 = 394^2 + 122^2 .

It is not an unprimeable number, because it can be changed into a prime (170123) by changing a digit.

170120 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2087 + ... + 2166.

2¹⁷⁰¹²⁰ is an apocalyptic number.

170120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

170120 is an abundant number, since it is smaller than the sum of its proper divisors (212740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

170120 is a wasteful number, since it uses less digits than its factorization.

170120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4264 (or 4260 counting only the distinct ones).

The product of its (nonzero) digits is 14, while the sum is 11.

The square root of 170120 is about 412.4560582656. The cubic root of 170120 is about 55.4096139918.

Adding to 170120 its reverse (21071), we get a palindrome (191191).

The spelling of 170120 in words is "one hundred seventy thousand, one hundred twenty", and thus it is an iban number.