240231 has 4 divisors (see below), whose sum is σ = 320312. Its totient is φ = 160152.

The previous prime is 240209. The next prime is 240257. The reversal of 240231 is 132042.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 240231 - 2¹⁵ = 207463 is a prime.

It is a super-2 number, since 2×240231² = 115421866722, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240271) 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, 40036 + ... + 40041.

It is an arithmetic number, because the mean of its divisors is an integer number (80078).

2²⁴⁰²³¹ is an apocalyptic number.

240231 is a deficient number, since it is larger than the sum of its proper divisors (80081).

240231 is an equidigital number, since it uses as much as digits as its factorization.

240231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80080.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 240231 is about 490.1336552411. The cubic root of 240231 is about 62.1645818009.

Adding to 240231 its reverse (132042), we get a palindrome (372273).

The spelling of 240231 in words is "two hundred forty thousand, two hundred thirty-one".