513018413 has 4 divisors (see below), whose sum is σ = 515319168. Its totient is φ = 510717660.

The previous prime is 513018409. The next prime is 513018421. The reversal of 513018413 is 314810315.

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 not a de Polignac number, because 513018413 - 2² = 513018409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513018403) 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, 1150043 + ... + 1150488.

It is an arithmetic number, because the mean of its divisors is an integer number (128829792).

Almost surely, 2^513018413 is an apocalyptic number.

It is an amenable number.

513018413 is a deficient number, since it is larger than the sum of its proper divisors (2300755).

513018413 is a wasteful number, since it uses less digits than its factorization.

513018413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300754.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 513018413 is about 22649.9097790698. The cubic root of 513018413 is about 800.5300721393.

Adding to 513018413 its reverse (314810315), we get a palindrome (827828728).

The spelling of 513018413 in words is "five hundred thirteen million, eighteen thousand, four hundred thirteen".