513440315 has 4 divisors (see below), whose sum is σ = 616128384. Its totient is φ = 410752248.

The previous prime is 513440311. The next prime is 513440351. The reversal of 513440315 is 513044315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 513440315 - 2² = 513440311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513440311) 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, 51344027 + ... + 51344036.

It is an arithmetic number, because the mean of its divisors is an integer number (154032096).

Almost surely, 2^513440315 is an apocalyptic number.

513440315 is a deficient number, since it is larger than the sum of its proper divisors (102688069).

513440315 is a wasteful number, since it uses less digits than its factorization.

513440315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102688068.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 513440315 is about 22659.2214120433. The cubic root of 513440315 is about 800.7494617271.

The spelling of 513440315 in words is "five hundred thirteen million, four hundred forty thousand, three hundred fifteen".