6431140403 has 8 divisors (see below), whose sum is σ = 6622140336. Its totient is φ = 6241766400.

The previous prime is 6431140379. The next prime is 6431140481. The reversal of 6431140403 is 3040411346.

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 6431140403 - 2²⁴ = 6414363187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6431140483) 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, 398453 + ... + 414278.

It is an arithmetic number, because the mean of its divisors is an integer number (827767542).

Almost surely, 2^6431140403 is an apocalyptic number.

6431140403 is a deficient number, since it is larger than the sum of its proper divisors (190999933).

6431140403 is a wasteful number, since it uses less digits than its factorization.

6431140403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812965.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 6431140403 is about 80194.3913437841. The cubic root of 6431140403 is about 1859.6419323641.

Adding to 6431140403 its reverse (3040411346), we get a palindrome (9471551749).

The spelling of 6431140403 in words is "six billion, four hundred thirty-one million, one hundred forty thousand, four hundred three".