515315 has 8 divisors (see below), whose sum is σ = 645408. Its totient is φ = 394240.

The previous prime is 515311. The next prime is 515323. The reversal of 515315 is 513515.

It is a happy number.

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

It is not a de Polignac number, because 515315 - 2² = 515311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (515311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2126 + ... + 2355.

It is an arithmetic number, because the mean of its divisors is an integer number (80676).

2⁵¹⁵³¹⁵ is an apocalyptic number.

515315 is a deficient number, since it is larger than the sum of its proper divisors (130093).

515315 is a wasteful number, since it uses less digits than its factorization.

515315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4509.

The product of its digits is 375, while the sum is 20.

The square root of 515315 is about 717.8544420703. The cubic root of 515315 is about 80.1722849573.

The spelling of 515315 in words is "five hundred fifteen thousand, three hundred fifteen".