4143431 has 4 divisors (see below), whose sum is σ = 4161912. Its totient is φ = 4124952.

The previous prime is 4143421. The next prime is 4143449. The reversal of 4143431 is 1343414.

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-4143431 is a prime.

It is a super-2 number, since 2×4143431² = 34336040903522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4143401) 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, 8900 + ... + 9353.

It is an arithmetic number, because the mean of its divisors is an integer number (1040478).

Almost surely, 2^4143431 is an apocalyptic number.

4143431 is a deficient number, since it is larger than the sum of its proper divisors (18481).

4143431 is a wasteful number, since it uses less digits than its factorization.

4143431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18480.

The product of its digits is 576, while the sum is 20.

The square root of 4143431 is about 2035.5419425794. The cubic root of 4143431 is about 160.6152224968.

Adding to 4143431 its reverse (1343414), we get a palindrome (5486845).

The spelling of 4143431 in words is "four million, one hundred forty-three thousand, four hundred thirty-one".