170288117 has 2 divisors, whose sum is σ = 170288118. Its totient is φ = 170288116.

The previous prime is 170287987. The next prime is 170288119. The reversal of 170288117 is 711882071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107972881 + 62315236 = 10391^2 + 7894^2 .

It is a cyclic number.

It is not a de Polignac number, because 170288117 - 2²⁰ = 169239541 is a prime.

Together with 170288119, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_9518381 and since 170288117 and 9518381 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (170288119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85144058 + 85144059.

It is an arithmetic number, because the mean of its divisors is an integer number (85144059).

Almost surely, 2^170288117 is an apocalyptic number.

It is an amenable number.

170288117 is a deficient number, since it is larger than the sum of its proper divisors (1).

170288117 is an equidigital number, since it uses as much as digits as its factorization.

170288117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 35.

The square root of 170288117 is about 13049.4489155673. The cubic root of 170288117 is about 554.2786038891.

The spelling of 170288117 in words is "one hundred seventy million, two hundred eighty-eight thousand, one hundred seventeen".