4131431 has 4 divisors (see below), whose sum is σ = 4138992. Its totient is φ = 4123872.

The previous prime is 4131409. The next prime is 4131443. The reversal of 4131431 is 1341314.

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

It is a cyclic number.

It is not a de Polignac number, because 4131431 - 2⁶ = 4131367 is a prime.

It is a super-2 number, since 2×4131431² = 34137444215522, which contains 22 as substring.

It is a Duffinian number.

4131431 is a Rhonda number in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4131451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2891 + ... + 4076.

It is an arithmetic number, because the mean of its divisors is an integer number (1034748).

Almost surely, 2^4131431 is an apocalyptic number.

4131431 is a deficient number, since it is larger than the sum of its proper divisors (7561).

4131431 is an equidigital number, since it uses as much as digits as its factorization.

4131431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7560.

The product of its digits is 144, while the sum is 17.

The square root of 4131431 is about 2032.5921873312. The cubic root of 4131431 is about 160.4600172789.

Adding to 4131431 its reverse (1341314), we get a palindrome (5472745).

The spelling of 4131431 in words is "four million, one hundred thirty-one thousand, four hundred thirty-one".