515313489 has 4 divisors (see below), whose sum is σ = 687084656. Its totient is φ = 343542324.

The previous prime is 515313479. The next prime is 515313517. The reversal of 515313489 is 984313515.

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 not a de Polignac number, because 515313489 - 2⁴ = 515313473 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (515313439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85885579 + ... + 85885584.

It is an arithmetic number, because the mean of its divisors is an integer number (171771164).

Almost surely, 2^515313489 is an apocalyptic number.

It is an amenable number.

515313489 is a deficient number, since it is larger than the sum of its proper divisors (171771167).

515313489 is a wasteful number, since it uses less digits than its factorization.

515313489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171771166.

The product of its digits is 64800, while the sum is 39.

The square root of 515313489 is about 22700.5173729587. The cubic root of 515313489 is about 801.7220659720.

The spelling of 515313489 in words is "five hundred fifteen million, three hundred thirteen thousand, four hundred eighty-nine".