171223325 has 48 divisors (see below), whose sum is σ = 265149696. Its totient is φ = 106790400.

The previous prime is 171223313. The next prime is 171223331. The reversal of 171223325 is 523322171.

It is not a de Polignac number, because 171223325 - 2⁸ = 171223069 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 171223294 and 171223303.

It is a congruent number.

It is an unprimeable number.

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 in 47 ways as a sum of consecutive naturals, for example, 165560 + ... + 166590.

It is an arithmetic number, because the mean of its divisors is an integer number (5523952).

Almost surely, 2^171223325 is an apocalyptic number.

It is an amenable number.

171223325 is a deficient number, since it is larger than the sum of its proper divisors (93926371).

171223325 is a wasteful number, since it uses less digits than its factorization.

171223325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134 (or 1129 counting only the distinct ones).

The product of its digits is 2520, while the sum is 26.

The square root of 171223325 is about 13085.2330892499. The cubic root of 171223325 is about 555.2914358237.

Adding to 171223325 its reverse (523322171), we get a palindrome (694545496).

The spelling of 171223325 in words is "one hundred seventy-one million, two hundred twenty-three thousand, three hundred twenty-five".