170430193 has 2 divisors, whose sum is σ = 170430194. Its totient is φ = 170430192.

The previous prime is 170430191. The next prime is 170430229. The reversal of 170430193 is 391034071.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163123984 + 7306209 = 12772^2 + 2703^2 .

It is an emirp because it is prime and its reverse (391034071) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 170430193 - 2¹ = 170430191 is a prime.

Together with 170430191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (170430191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85215096 + 85215097.

It is an arithmetic number, because the mean of its divisors is an integer number (85215097).

Almost surely, 2^170430193 is an apocalyptic number.

It is an amenable number.

170430193 is a deficient number, since it is larger than the sum of its proper divisors (1).

170430193 is an equidigital number, since it uses as much as digits as its factorization.

170430193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 170430193 is about 13054.8915353595. The cubic root of 170430193 is about 554.4327109352.

The spelling of 170430193 in words is "one hundred seventy million, four hundred thirty thousand, one hundred ninety-three".