4133231 has 4 divisors (see below), whose sum is σ = 4139352. Its totient is φ = 4127112.

The previous prime is 4133219. The next prime is 4133237. The reversal of 4133231 is 1323314.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4133231 is a prime.

It is a super-2 number, since 2×4133231² = 34167196998722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4133237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1901 + ... + 3446.

It is an arithmetic number, because the mean of its divisors is an integer number (1034838).

Almost surely, 2^4133231 is an apocalyptic number.

4133231 is a deficient number, since it is larger than the sum of its proper divisors (6121).

4133231 is an equidigital number, since it uses as much as digits as its factorization.

4133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6120.

The product of its digits is 216, while the sum is 17.

The square root of 4133231 is about 2033.0349234580. The cubic root of 4133231 is about 160.4833172038.

Adding to 4133231 its reverse (1323314), we get a palindrome (5456545).

The spelling of 4133231 in words is "four million, one hundred thirty-three thousand, two hundred thirty-one".