170103 has 4 divisors (see below), whose sum is σ = 226808. Its totient is φ = 113400.

The previous prime is 170101. The next prime is 170111. The reversal of 170103 is 301071.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301071 = 3 ⋅100357.

It is not a de Polignac number, because 170103 - 2¹ = 170101 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 170103.

It is not an unprimeable number, because it can be changed into a prime (170101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28348 + ... + 28353.

It is an arithmetic number, because the mean of its divisors is an integer number (56702).

2¹⁷⁰¹⁰³ is an apocalyptic number.

170103 is a deficient number, since it is larger than the sum of its proper divisors (56705).

170103 is an equidigital number, since it uses as much as digits as its factorization.

170103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56704.

The product of its (nonzero) digits is 21, while the sum is 12.

The square root of 170103 is about 412.4354494948. The cubic root of 170103 is about 55.4077682460.

Adding to 170103 its reverse (301071), we get a palindrome (471174).

The spelling of 170103 in words is "one hundred seventy thousand, one hundred three", and thus it is an iban number.