513330891 has 16 divisors (see below), whose sum is σ = 707186688. Its totient is φ = 330868800.

The previous prime is 513330877. The next prime is 513330901. The reversal of 513330891 is 198033315.

It is not a de Polignac number, because 513330891 - 2¹⁰ = 513329867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (513330821) 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 in 15 ways as a sum of consecutive naturals, for example, 135870 + ... + 139596.

It is an arithmetic number, because the mean of its divisors is an integer number (44199168).

Almost surely, 2^513330891 is an apocalyptic number.

513330891 is a deficient number, since it is larger than the sum of its proper divisors (193855797).

513330891 is a wasteful number, since it uses less digits than its factorization.

513330891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5242.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 513330891 is about 22656.8067255737. The cubic root of 513330891 is about 800.6925726517.

The spelling of 513330891 in words is "five hundred thirteen million, three hundred thirty thousand, eight hundred ninety-one".