515249 has 4 divisors (see below), whose sum is σ = 588864. Its totient is φ = 441636.

The previous prime is 515237. The next prime is 515279. The reversal of 515249 is 942515.

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 515249 - 2⁴ = 515233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (515279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36797 + ... + 36810.

It is an arithmetic number, because the mean of its divisors is an integer number (147216).

2⁵¹⁵²⁴⁹ is an apocalyptic number.

It is an amenable number.

515249 is a deficient number, since it is larger than the sum of its proper divisors (73615).

515249 is an equidigital number, since it uses as much as digits as its factorization.

515249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73614.

The product of its digits is 1800, while the sum is 26.

The square root of 515249 is about 717.8084702760. The cubic root of 515249 is about 80.1688620692.

It can be divided in two parts, 5 and 15249, that multiplied together give a triangular number (76245 = T₃₉₀).

The spelling of 515249 in words is "five hundred fifteen thousand, two hundred forty-nine".