5131543 has 2 divisors, whose sum is σ = 5131544. Its totient is φ = 5131542.

The previous prime is 5131541. The next prime is 5131571. The reversal of 5131543 is 3451315.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5131543 - 2¹ = 5131541 is a prime.

Together with 5131541, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5131541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2565771 + 2565772.

It is an arithmetic number, because the mean of its divisors is an integer number (2565772).

Almost surely, 2^5131543 is an apocalyptic number.

5131543 is a deficient number, since it is larger than the sum of its proper divisors (1).

5131543 is an equidigital number, since it uses as much as digits as its factorization.

5131543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 900, while the sum is 22.

The square root of 5131543 is about 2265.2909305429. The cubic root of 5131543 is about 172.4842021519.

Adding to 5131543 its reverse (3451315), we get a palindrome (8582858).

The spelling of 5131543 in words is "five million, one hundred thirty-one thousand, five hundred forty-three".