513232315 has 4 divisors (see below), whose sum is σ = 615878784. Its totient is φ = 410585848.

The previous prime is 513232309. The next prime is 513232319.

513232315 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 513232315 - 2⁵ = 513232283 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 513232315.

It is not an unprimeable number, because it can be changed into a prime (513232319) 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 3 ways as a sum of consecutive naturals, for example, 51323227 + ... + 51323236.

It is an arithmetic number, because the mean of its divisors is an integer number (153969696).

Almost surely, 2^513232315 is an apocalyptic number.

513232315 is a deficient number, since it is larger than the sum of its proper divisors (102646469).

513232315 is a wasteful number, since it uses less digits than its factorization.

513232315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102646468.

The product of its digits is 2700, while the sum is 25.

The square root of 513232315 is about 22654.6312042372. The cubic root of 513232315 is about 800.6413164832.

The spelling of 513232315 in words is "five hundred thirteen million, two hundred thirty-two thousand, three hundred fifteen".