170953 has 2 divisors, whose sum is σ = 170954. Its totient is φ = 170952.

The previous prime is 170927. The next prime is 170957. The reversal of 170953 is 359071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166464 + 4489 = 408^2 + 67^2 .

It is a cyclic number.

It is not a de Polignac number, because 170953 - 2⁵ = 170921 is a prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (170957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85476 + 85477.

It is an arithmetic number, because the mean of its divisors is an integer number (85477).

2¹⁷⁰⁹⁵³ is an apocalyptic number.

It is an amenable number.

170953 is a deficient number, since it is larger than the sum of its proper divisors (1).

170953 is an equidigital number, since it uses as much as digits as its factorization.

170953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 170953 is about 413.4646296843. The cubic root of 170953 is about 55.4999053106.

The spelling of 170953 in words is "one hundred seventy thousand, nine hundred fifty-three".