515115 has 12 divisors (see below), whose sum is σ = 892944. Its totient is φ = 274704.

The previous prime is 515111. The next prime is 515143. The reversal of 515115 is 511515.

It is not a de Polignac number, because 515115 - 2² = 515111 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (515111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5679 + ... + 5768.

It is an arithmetic number, because the mean of its divisors is an integer number (74412).

2⁵¹⁵¹¹⁵ is an apocalyptic number.

515115 is a deficient number, since it is larger than the sum of its proper divisors (377829).

515115 is a wasteful number, since it uses less digits than its factorization.

515115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11458 (or 11455 counting only the distinct ones).

The product of its digits is 125, while the sum is 18.

The square root of 515115 is about 717.7151245446. The cubic root of 515115 is about 80.1619116699.

Subtracting from 515115 its reverse (511515), we obtain a square (3600 = 60²).

It can be divided in two parts, 515 and 115, that added together give a triangular number (630 = T₃₅).

The spelling of 515115 in words is "five hundred fifteen thousand, one hundred fifteen".