232181 has 4 divisors (see below), whose sum is σ = 235200. Its totient is φ = 229164.

The previous prime is 232171. The next prime is 232187. The reversal of 232181 is 181232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 232181 - 2⁶ = 232117 is a prime.

It is a super-2 number, since 2×232181² = 107816033522, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1391 + ... + 1548.

It is an arithmetic number, because the mean of its divisors is an integer number (58800).

2²³²¹⁸¹ is an apocalyptic number.

It is an amenable number.

232181 is a deficient number, since it is larger than the sum of its proper divisors (3019).

232181 is an equidigital number, since it uses as much as digits as its factorization.

232181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3018.

The product of its digits is 96, while the sum is 17.

The square root of 232181 is about 481.8516369174. The cubic root of 232181 is about 61.4623119388.

The spelling of 232181 in words is "two hundred thirty-two thousand, one hundred eighty-one".