513641323 has 8 divisors (see below), whose sum is σ = 553441616. Its totient is φ = 473882400.

The previous prime is 513641209. The next prime is 513641347. The reversal of 513641323 is 323146315.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513641323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 513641291 and 513641300.

It is not an unprimeable number, because it can be changed into a prime (513645323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18433 + ... + 36973.

It is an arithmetic number, because the mean of its divisors is an integer number (69180202).

Almost surely, 2^513641323 is an apocalyptic number.

513641323 is a deficient number, since it is larger than the sum of its proper divisors (39800293).

513641323 is a wasteful number, since it uses less digits than its factorization.

513641323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20685.

The product of its digits is 6480, while the sum is 28.

The square root of 513641323 is about 22663.6564349180. The cubic root of 513641323 is about 800.8539438796.

Adding to 513641323 its reverse (323146315), we get a palindrome (836787638).

The spelling of 513641323 in words is "five hundred thirteen million, six hundred forty-one thousand, three hundred twenty-three".