4312231 has 8 divisors (see below), whose sum is σ = 5376384. Its totient is φ = 3360120.

The previous prime is 4312229. The next prime is 4312261. The reversal of 4312231 is 1322134.

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 4312231 - 2¹ = 4312229 is a prime.

It is a super-2 number, since 2×4312231² = 37190672394722, which contains 22 as substring.

It is a Duffinian number.

4312231 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4312261) 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 7 ways as a sum of consecutive naturals, for example, 27925 + ... + 28078.

It is an arithmetic number, because the mean of its divisors is an integer number (672048).

Almost surely, 2^4312231 is an apocalyptic number.

4312231 is a deficient number, since it is larger than the sum of its proper divisors (1064153).

4312231 is a wasteful number, since it uses less digits than its factorization.

4312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56021.

The product of its digits is 144, while the sum is 16.

The square root of 4312231 is about 2076.5911971305. The cubic root of 4312231 is about 162.7673673443.

Adding to 4312231 its reverse (1322134), we get a palindrome (5634365).

It can be divided in two parts, 431 and 2231, that added together give a palindrome (2662).

The spelling of 4312231 in words is "four million, three hundred twelve thousand, two hundred thirty-one".