512303513 has 4 divisors (see below), whose sum is σ = 513780240. Its totient is φ = 510826788.

The previous prime is 512303503. The next prime is 512303521. The reversal of 512303513 is 315303215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-512303513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512303503) 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 in 3 ways as a sum of consecutive naturals, for example, 737843 + ... + 738536.

It is an arithmetic number, because the mean of its divisors is an integer number (128445060).

Almost surely, 2^512303513 is an apocalyptic number.

It is an amenable number.

512303513 is a deficient number, since it is larger than the sum of its proper divisors (1476727).

512303513 is a wasteful number, since it uses less digits than its factorization.

512303513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476726.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 512303513 is about 22634.1227574651. The cubic root of 512303513 is about 800.1580484613.

Adding to 512303513 its reverse (315303215), we get a palindrome (827606728).

The spelling of 512303513 in words is "five hundred twelve million, three hundred three thousand, five hundred thirteen".