515013 has 4 divisors (see below), whose sum is σ = 686688. Its totient is φ = 343340.

The previous prime is 514967. The next prime is 515041. The reversal of 515013 is 310515.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 515013 - 2⁶ = 514949 is a prime.

It is a D-number.

It is a Curzon number.

515013 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 514983 and 515001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85833 + ... + 85838.

It is an arithmetic number, because the mean of its divisors is an integer number (171672).

2⁵¹⁵⁰¹³ is an apocalyptic number.

It is an amenable number.

515013 is a deficient number, since it is larger than the sum of its proper divisors (171675).

515013 is a wasteful number, since it uses less digits than its factorization.

515013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171674.

The product of its (nonzero) digits is 75, while the sum is 15.

The square root of 515013 is about 717.6440621924. The cubic root of 515013 is about 80.1566202594.

Adding to 515013 its reverse (310515), we get a palindrome (825528).

The spelling of 515013 in words is "five hundred fifteen thousand, thirteen".