170147 has 4 divisors (see below), whose sum is σ = 171120. Its totient is φ = 169176.

The previous prime is 170141. The next prime is 170167. The reversal of 170147 is 741071.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 170147 - 2⁸ = 169891 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 170147.

It is not an unprimeable number, because it can be changed into a prime (170141) 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, 143 + ... + 600.

It is an arithmetic number, because the mean of its divisors is an integer number (42780).

2¹⁷⁰¹⁴⁷ is an apocalyptic number.

170147 is a deficient number, since it is larger than the sum of its proper divisors (973).

170147 is an equidigital number, since it uses as much as digits as its factorization.

170147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 170147 is about 412.4887877264. The cubic root of 170147 is about 55.4125452177.

The spelling of 170147 in words is "one hundred seventy thousand, one hundred forty-seven", and thus it is an iban number.