5131521547 has 2 divisors, whose sum is σ = 5131521548. Its totient is φ = 5131521546.

The previous prime is 5131521541. The next prime is 5131521599. The reversal of 5131521547 is 7451251315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5131521547 - 2¹¹ = 5131519499 is a prime.

It is not a weakly prime, because it can be changed into another prime (5131521541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2565760773 + 2565760774.

It is an arithmetic number, because the mean of its divisors is an integer number (2565760774).

Almost surely, 2^5131521547 is an apocalyptic number.

5131521547 is a deficient number, since it is larger than the sum of its proper divisors (1).

5131521547 is an equidigital number, since it uses as much as digits as its factorization.

5131521547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21000, while the sum is 34.

The square root of 5131521547 is about 71634.6392955252. The cubic root of 5131521547 is about 1724.8396178831.

The spelling of 5131521547 in words is "five billion, one hundred thirty-one million, five hundred twenty-one thousand, five hundred forty-seven".