513306087 has 16 divisors (see below), whose sum is σ = 782676480. Its totient is φ = 293131872.

The previous prime is 513306067. The next prime is 513306089. The reversal of 513306087 is 780603315.

It is a happy number.

It is not a de Polignac number, because 513306087 - 2¹⁴ = 513289703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513306089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30589 + ... + 44297.

It is an arithmetic number, because the mean of its divisors is an integer number (48917280).

Almost surely, 2^513306087 is an apocalyptic number.

513306087 is a deficient number, since it is larger than the sum of its proper divisors (269370393).

513306087 is a wasteful number, since it uses less digits than its factorization.

513306087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15502.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 513306087 is about 22656.2593337912. The cubic root of 513306087 is about 800.6796760329.

The spelling of 513306087 in words is "five hundred thirteen million, three hundred six thousand, eighty-seven".