513545315 has 4 divisors (see below), whose sum is σ = 616254384. Its totient is φ = 410836248.

The previous prime is 513545309. The next prime is 513545317.

513545315 is nontrivially palindromic in base 10.

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 513545315 - 2¹⁴ = 513528931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513545317) 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, 51354527 + ... + 51354536.

It is an arithmetic number, because the mean of its divisors is an integer number (154063596).

Almost surely, 2^513545315 is an apocalyptic number.

513545315 is a deficient number, since it is larger than the sum of its proper divisors (102709069).

513545315 is a wasteful number, since it uses less digits than its factorization.

513545315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102709068.

The product of its digits is 22500, while the sum is 32.

The square root of 513545315 is about 22661.5382311087. The cubic root of 513545315 is about 800.8040431850.

The spelling of 513545315 in words is "five hundred thirteen million, five hundred forty-five thousand, three hundred fifteen".