512643713 has 2 divisors, whose sum is σ = 512643714. Its totient is φ = 512643712.

The previous prime is 512643709. The next prime is 512643727. The reversal of 512643713 is 317346215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 436308544 + 76335169 = 20888^2 + 8737^2 .

It is a cyclic number.

It is not a de Polignac number, because 512643713 - 2² = 512643709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 512643713.

It is not a weakly prime, because it can be changed into another prime (512643763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256321856 + 256321857.

It is an arithmetic number, because the mean of its divisors is an integer number (256321857).

Almost surely, 2^512643713 is an apocalyptic number.

It is an amenable number.

512643713 is a deficient number, since it is larger than the sum of its proper divisors (1).

512643713 is an equidigital number, since it uses as much as digits as its factorization.

512643713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 32.

The square root of 512643713 is about 22641.6367120401. The cubic root of 512643713 is about 800.3351267804.

Adding to 512643713 its reverse (317346215), we get a palindrome (829989928).

The spelling of 512643713 in words is "five hundred twelve million, six hundred forty-three thousand, seven hundred thirteen".