43159231513 has 2 divisors, whose sum is σ = 43159231514. Its totient is φ = 43159231512.

The previous prime is 43159231501. The next prime is 43159231517. The reversal of 43159231513 is 31513295134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43159231504 + 9 = 207748^2 + 3^2 .

It is a cyclic number.

It is not a de Polignac number, because 43159231513 - 2⁹ = 43159231001 is a prime.

It is not a weakly prime, because it can be changed into another prime (43159231517) 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, 21579615756 + 21579615757.

It is an arithmetic number, because the mean of its divisors is an integer number (21579615757).

Almost surely, 2^43159231513 is an apocalyptic number.

It is an amenable number.

43159231513 is a deficient number, since it is larger than the sum of its proper divisors (1).

43159231513 is an equidigital number, since it uses as much as digits as its factorization.

43159231513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48600, while the sum is 37.

The spelling of 43159231513 in words is "forty-three billion, one hundred fifty-nine million, two hundred thirty-one thousand, five hundred thirteen".