515241 has 10 divisors (see below), whose sum is σ = 769802. Its totient is φ = 343440.

The previous prime is 515237. The next prime is 515279. The reversal of 515241 is 142515.

It can be written as a sum of positive squares in only one way, i.e., 385641 + 129600 = 621^2 + 360^2 .

It is not a de Polignac number, because 515241 - 2² = 515237 is a prime.

It is a Duffinian 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 9 ways as a sum of consecutive naturals, for example, 3100 + ... + 3261.

2⁵¹⁵²⁴¹ is an apocalyptic number.

It is an amenable number.

515241 is a deficient number, since it is larger than the sum of its proper divisors (254561).

515241 is an equidigital number, since it uses as much as digits as its factorization.

515241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6373 (or 6364 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 515241 is about 717.8028977373. The cubic root of 515241 is about 80.1684471539.

Adding to 515241 its reverse (142515), we get a palindrome (657756).

The spelling of 515241 in words is "five hundred fifteen thousand, two hundred forty-one".