163231 has 8 divisors (see below), whose sum is σ = 175104. Its totient is φ = 151800.

The previous prime is 163223. The next prime is 163243. The reversal of 163231 is 132361.

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

It is not a de Polignac number, because 163231 - 2³ = 163223 is a prime.

It is a super-2 number, since 2×163231² = 53288718722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163211) 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, 1006 + ... + 1156.

It is an arithmetic number, because the mean of its divisors is an integer number (21888).

2¹⁶³²³¹ is an apocalyptic number.

163231 is a deficient number, since it is larger than the sum of its proper divisors (11873).

163231 is a wasteful number, since it uses less digits than its factorization.

163231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221.

The product of its digits is 108, while the sum is 16.

The square root of 163231 is about 404.0185639299. The cubic root of 163231 is about 54.6513482428.

Adding to 163231 its reverse (132361), we get a palindrome (295592).

The spelling of 163231 in words is "one hundred sixty-three thousand, two hundred thirty-one".