6131431 has 2 divisors, whose sum is σ = 6131432. Its totient is φ = 6131430.

The previous prime is 6131423. The next prime is 6131443. The reversal of 6131431 is 1341316.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6131431 - 2³ = 6131423 is a prime.

It is a super-2 number, since 2×6131431² = 75188892215522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6131399 and 6131408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6131401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3065715 + 3065716.

It is an arithmetic number, because the mean of its divisors is an integer number (3065716).

Almost surely, 2^6131431 is an apocalyptic number.

6131431 is a deficient number, since it is larger than the sum of its proper divisors (1).

6131431 is an equidigital number, since it uses as much as digits as its factorization.

6131431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 19.

The square root of 6131431 is about 2476.1726514926. The cubic root of 6131431 is about 183.0292984633.

Adding to 6131431 its reverse (1341316), we get a palindrome (7472747).

The spelling of 6131431 in words is "six million, one hundred thirty-one thousand, four hundred thirty-one".