171352231 has 8 divisors (see below), whose sum is σ = 189320544. Its totient is φ = 154260480.

The previous prime is 171352229. The next prime is 171352297. The reversal of 171352231 is 132253171.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 171352231 - 2¹ = 171352229 is a prime.

It is a super-2 number, since 2×171352231² = 58723174137354722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 171352196 and 171352205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171355231) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 218730 + ... + 219511.

It is an arithmetic number, because the mean of its divisors is an integer number (23665068).

Almost surely, 2^171352231 is an apocalyptic number.

171352231 is a deficient number, since it is larger than the sum of its proper divisors (17968313).

171352231 is a wasteful number, since it uses less digits than its factorization.

171352231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438281.

The product of its digits is 1260, while the sum is 25.

The square root of 171352231 is about 13090.1577912568. The cubic root of 171352231 is about 555.4307518157.

The spelling of 171352231 in words is "one hundred seventy-one million, three hundred fifty-two thousand, two hundred thirty-one".