170057 has 2 divisors, whose sum is σ = 170058. Its totient is φ = 170056.

The previous prime is 170047. The next prime is 170063. The reversal of 170057 is 750071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89401 + 80656 = 299^2 + 284^2 .

It is a cyclic number.

It is not a de Polignac number, because 170057 - 2¹² = 165961 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (170047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85028 + 85029.

It is an arithmetic number, because the mean of its divisors is an integer number (85029).

2¹⁷⁰⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

170057 is a deficient number, since it is larger than the sum of its proper divisors (1).

170057 is an equidigital number, since it uses as much as digits as its factorization.

170057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 245, while the sum is 20.

The square root of 170057 is about 412.3796794218. The cubic root of 170057 is about 55.4027732585.

The spelling of 170057 in words is "one hundred seventy thousand, fifty-seven".