4131231 has 8 divisors (see below), whose sum is σ = 5932080. Its totient is φ = 2542272.

The previous prime is 4131229. The next prime is 4131241. The reversal of 4131231 is 1321314.

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

It is not a de Polignac number, because 4131231 - 2¹ = 4131229 is a prime.

It is a super-2 number, since 2×4131231² = 34134139150722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4131231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4131241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52926 + ... + 53003.

It is an arithmetic number, because the mean of its divisors is an integer number (741510).

Almost surely, 2^4131231 is an apocalyptic number.

4131231 is a deficient number, since it is larger than the sum of its proper divisors (1800849).

4131231 is a wasteful number, since it uses less digits than its factorization.

4131231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105945.

The product of its digits is 72, while the sum is 15.

The square root of 4131231 is about 2032.5429884753. The cubic root of 4131231 is about 160.4574279807.

Adding to 4131231 its reverse (1321314), we get a palindrome (5452545).

The spelling of 4131231 in words is "four million, one hundred thirty-one thousand, two hundred thirty-one".