515235 has 24 divisors (see below), whose sum is σ = 960336. Its totient is φ = 235200.

The previous prime is 515233. The next prime is 515237. The reversal of 515235 is 532515.

It is an interprime number because it is at equal distance from previous prime (515233) and next prime (515237).

It is not a de Polignac number, because 515235 - 2¹ = 515233 is a prime.

It is a super-3 number, since 3×515235³ = 410333831881808625, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

515235 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (515231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 385 + ... + 1085.

It is an arithmetic number, because the mean of its divisors is an integer number (40014).

2⁵¹⁵²³⁵ is an apocalyptic number.

515235 is a deficient number, since it is larger than the sum of its proper divisors (445101).

515235 is a wasteful number, since it uses less digits than its factorization.

515235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723 (or 716 counting only the distinct ones).

The product of its digits is 750, while the sum is 21.

The square root of 515235 is about 717.7987183048. The cubic root of 515235 is about 80.1681359645.

The spelling of 515235 in words is "five hundred fifteen thousand, two hundred thirty-five".