515313487 has 8 divisors (see below), whose sum is σ = 555206400. Its totient is φ = 475456800.

The previous prime is 515313479. The next prime is 515313517. The reversal of 515313487 is 784313515.

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

It is not a de Polignac number, because 515313487 - 2³ = 515313479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515313427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25362 + ... + 40912.

It is an arithmetic number, because the mean of its divisors is an integer number (69400800).

Almost surely, 2^515313487 is an apocalyptic number.

515313487 is a deficient number, since it is larger than the sum of its proper divisors (39892913).

515313487 is a wasteful number, since it uses less digits than its factorization.

515313487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18113.

The product of its digits is 50400, while the sum is 37.

The square root of 515313487 is about 22700.5173289068. The cubic root of 515313487 is about 801.7220649348.

The spelling of 515313487 in words is "five hundred fifteen million, three hundred thirteen thousand, four hundred eighty-seven".