171425 has 6 divisors (see below), whose sum is σ = 212598. Its totient is φ = 137120.

The previous prime is 171403. The next prime is 171427. The reversal of 171425 is 524171.

171425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1681 + 169744 = 41^2 + 412^2 .

It is not a de Polignac number, because 171425 - 2⁸ = 171169 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 171397 and 171406.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 171425.

It is not an unprimeable number, because it can be changed into a prime (171427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3404 + ... + 3453.

It is an arithmetic number, because the mean of its divisors is an integer number (35433).

2¹⁷¹⁴²⁵ is an apocalyptic number.

It is an amenable number.

171425 is a deficient number, since it is larger than the sum of its proper divisors (41173).

171425 is an equidigital number, since it uses as much as digits as its factorization.

171425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6867 (or 6862 counting only the distinct ones).

The product of its digits is 280, while the sum is 20.

The square root of 171425 is about 414.0350226732. The cubic root of 171425 is about 55.5509366530.

Subtracting from 171425 its sum of digits (20), we obtain a triangular number (171405 = T₅₈₅).

Adding to 171425 its reverse (524171), we get a palindrome (695596).

The spelling of 171425 in words is "one hundred seventy-one thousand, four hundred twenty-five".