171449 has 2 divisors, whose sum is σ = 171450. Its totient is φ = 171448.

The previous prime is 171439. The next prime is 171467. The reversal of 171449 is 944171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160000 + 11449 = 400^2 + 107^2 .

It is a cyclic number.

It is not a de Polignac number, because 171449 - 2¹⁶ = 105913 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (171439) 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, 85724 + 85725.

It is an arithmetic number, because the mean of its divisors is an integer number (85725).

2¹⁷¹⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

171449 is a deficient number, since it is larger than the sum of its proper divisors (1).

171449 is an equidigital number, since it uses as much as digits as its factorization.

171449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 26.

The square root of 171449 is about 414.0640047142. The cubic root of 171449 is about 55.5535289631.

The spelling of 171449 in words is "one hundred seventy-one thousand, four hundred forty-nine".