171208097 has 2 divisors, whose sum is σ = 171208098. Its totient is φ = 171208096.

The previous prime is 171208091. The next prime is 171208099. The reversal of 171208097 is 790802171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162588001 + 8620096 = 12751^2 + 2936^2 .

It is a cyclic number.

It is not a de Polignac number, because 171208097 - 2⁶ = 171208033 is a prime.

It is a super-2 number, since 2×171208097² = 58624424956722818, which contains 22 as substring.

Together with 171208099, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (171208091) 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, 85604048 + 85604049.

It is an arithmetic number, because the mean of its divisors is an integer number (85604049).

Almost surely, 2^171208097 is an apocalyptic number.

It is an amenable number.

171208097 is a deficient number, since it is larger than the sum of its proper divisors (1).

171208097 is an equidigital number, since it uses as much as digits as its factorization.

171208097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 171208097 is about 13084.6511990194. The cubic root of 171208097 is about 555.2749734469.

The spelling of 171208097 in words is "one hundred seventy-one million, two hundred eight thousand, ninety-seven".