171085351 has 2 divisors, whose sum is σ = 171085352. Its totient is φ = 171085350.

The previous prime is 171085319. The next prime is 171085379. The reversal of 171085351 is 153580171.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 171085351 - 2⁵ = 171085319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171085301) 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, 85542675 + 85542676.

It is an arithmetic number, because the mean of its divisors is an integer number (85542676).

Almost surely, 2^171085351 is an apocalyptic number.

171085351 is a deficient number, since it is larger than the sum of its proper divisors (1).

171085351 is an equidigital number, since it uses as much as digits as its factorization.

171085351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 31.

The square root of 171085351 is about 13079.9599005502. The cubic root of 171085351 is about 555.1422420361.

The spelling of 171085351 in words is "one hundred seventy-one million, eighty-five thousand, three hundred fifty-one".