171034649 has 2 divisors, whose sum is σ = 171034650. Its totient is φ = 171034648.

The previous prime is 171034627. The next prime is 171034673. The reversal of 171034649 is 946430171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144769024 + 26265625 = 12032^2 + 5125^2 .

It is a cyclic number.

It is not a de Polignac number, because 171034649 - 2²⁰ = 169986073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (171034849) 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, 85517324 + 85517325.

It is an arithmetic number, because the mean of its divisors is an integer number (85517325).

Almost surely, 2^171034649 is an apocalyptic number.

It is an amenable number.

171034649 is a deficient number, since it is larger than the sum of its proper divisors (1).

171034649 is an equidigital number, since it uses as much as digits as its factorization.

171034649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 171034649 is about 13078.0216011444. The cubic root of 171034649 is about 555.0873968906.

The spelling of 171034649 in words is "one hundred seventy-one million, thirty-four thousand, six hundred forty-nine".