513643105 has 16 divisors (see below), whose sum is σ = 626834880. Its totient is φ = 403964352.

The previous prime is 513643057. The next prime is 513643147. The reversal of 513643105 is 501346315.

It is not a de Polignac number, because 513643105 - 2⁹ = 513642593 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206127 + ... + 208603.

It is an arithmetic number, because the mean of its divisors is an integer number (39177180).

Almost surely, 2^513643105 is an apocalyptic number.

It is an amenable number.

513643105 is a deficient number, since it is larger than the sum of its proper divisors (113191775).

513643105 is a wasteful number, since it uses less digits than its factorization.

513643105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3168.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 513643105 is about 22663.6957489285. The cubic root of 513643105 is about 800.8548700253.

The spelling of 513643105 in words is "five hundred thirteen million, six hundred forty-three thousand, one hundred five".