515287 has 6 divisors (see below), whose sum is σ = 547688. Its totient is φ = 484704.

The previous prime is 515279. The next prime is 515293. The reversal of 515287 is 782515.

515287 is nontrivially palindromic in base 16.

It is not a de Polignac number, because 515287 - 2³ = 515279 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 603 + ... + 1180.

2⁵¹⁵²⁸⁷ is an apocalyptic number.

515287 is a deficient number, since it is larger than the sum of its proper divisors (32401).

515287 is a wasteful number, since it uses less digits than its factorization.

515287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817 (or 1800 counting only the distinct ones).

The product of its digits is 2800, while the sum is 28.

The square root of 515287 is about 717.8349392444. The cubic root of 515287 is about 80.1708328587.

The spelling of 515287 in words is "five hundred fifteen thousand, two hundred eighty-seven".