170112017 has 2 divisors, whose sum is σ = 170112018. Its totient is φ = 170112016.

The previous prime is 170112011. The next prime is 170112029. The reversal of 170112017 is 710211071.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160680976 + 9431041 = 12676^2 + 3071^2 .

It is a cyclic number.

It is not a de Polignac number, because 170112017 - 2⁴ = 170112001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 170112017.

It is not a weakly prime, because it can be changed into another prime (170112011) 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, 85056008 + 85056009.

It is an arithmetic number, because the mean of its divisors is an integer number (85056009).

Almost surely, 2^170112017 is an apocalyptic number.

It is an amenable number.

170112017 is a deficient number, since it is larger than the sum of its proper divisors (1).

170112017 is an equidigital number, since it uses as much as digits as its factorization.

170112017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98, while the sum is 20.

The square root of 170112017 is about 13042.6997588689. The cubic root of 170112017 is about 554.0874726663.

Adding to 170112017 its reverse (710211071), we get a palindrome (880323088).

The spelling of 170112017 in words is "one hundred seventy million, one hundred twelve thousand, seventeen".