513287 has 8 divisors (see below), whose sum is σ = 535296. Its totient is φ = 491832.

The previous prime is 513283. The next prime is 513307. The reversal of 513287 is 782315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 513287 - 2² = 513283 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 (513283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3068 + ... + 3230.

It is an arithmetic number, because the mean of its divisors is an integer number (66912).

2⁵¹³²⁸⁷ is an apocalyptic number.

513287 is a deficient number, since it is larger than the sum of its proper divisors (22009).

513287 is a wasteful number, since it uses less digits than its factorization.

513287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277.

The product of its digits is 1680, while the sum is 26.

The square root of 513287 is about 716.4405069509. The cubic root of 513287 is about 80.0669751634.

The spelling of 513287 in words is "five hundred thirteen thousand, two hundred eighty-seven".