231752 has 16 divisors (see below), whose sum is σ = 442800. Its totient is φ = 113680.

The previous prime is 231719. The next prime is 231779. The reversal of 231752 is 257132.

It is an unprimeable number.

231752 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227 + ... + 717.

It is an arithmetic number, because the mean of its divisors is an integer number (27675).

2²³¹⁷⁵² is an apocalyptic number.

It is an amenable number.

231752 is a deficient number, since it is larger than the sum of its proper divisors (211048).

231752 is a wasteful number, since it uses less digits than its factorization.

231752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 552 counting only the distinct ones).

The product of its digits is 420, while the sum is 20.

The square root of 231752 is about 481.4062733285. The cubic root of 231752 is about 61.4244340359.

Adding to 231752 its reverse (257132), we get a palindrome (488884).

It can be divided in two parts, 2 and 31752, that multiplied together give a square (63504 = 252²).

The spelling of 231752 in words is "two hundred thirty-one thousand, seven hundred fifty-two".