170957 has 2 divisors, whose sum is σ = 170958. Its totient is φ = 170956.

The previous prime is 170953. The next prime is 170971. The reversal of 170957 is 759071.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98596 + 72361 = 314^2 + 269^2 .

It is a cyclic number.

It is not a de Polignac number, because 170957 - 2² = 170953 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a plaindrome in base 16.

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 170957.

It is not a weakly prime, because it can be changed into another prime (170953) by changing a digit.

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 as a sum of consecutive naturals, namely, 85478 + 85479.

It is an arithmetic number, because the mean of its divisors is an integer number (85479).

2¹⁷⁰⁹⁵⁷ is an apocalyptic number.

It is an amenable number.

170957 is a deficient number, since it is larger than the sum of its proper divisors (1).

170957 is an equidigital number, since it uses as much as digits as its factorization.

170957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2205, while the sum is 29.

The square root of 170957 is about 413.4694668292. The cubic root of 170957 is about 55.5003381740.

The spelling of 170957 in words is "one hundred seventy thousand, nine hundred fifty-seven".