171438325 has 6 divisors (see below), whose sum is σ = 212583554. Its totient is φ = 137150640.

The previous prime is 171438299. The next prime is 171438341. The reversal of 171438325 is 523834171.

It can be written as a sum of positive squares in 3 ways, for example, as 19483396 + 151954929 = 4414^2 + 12327^2 .

It is not a de Polignac number, because 171438325 - 2¹⁵ = 171405557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3428742 + ... + 3428791.

Almost surely, 2^171438325 is an apocalyptic number.

It is an amenable number.

171438325 is a deficient number, since it is larger than the sum of its proper divisors (41145229).

171438325 is an equidigital number, since it uses as much as digits as its factorization.

171438325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6857543 (or 6857538 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 171438325 is about 13093.4458795231. The cubic root of 171438325 is about 555.5237595506.

The spelling of 171438325 in words is "one hundred seventy-one million, four hundred thirty-eight thousand, three hundred twenty-five".