513620163 has 16 divisors (see below), whose sum is σ = 869621760. Its totient is φ = 293497128.

The previous prime is 513620147. The next prime is 513620171. The reversal of 513620163 is 361026315.

It is not a de Polignac number, because 513620163 - 2⁴ = 513620147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (513620113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1358595 + ... + 1358972.

It is an arithmetic number, because the mean of its divisors is an integer number (54351360).

Almost surely, 2^513620163 is an apocalyptic number.

513620163 is a deficient number, since it is larger than the sum of its proper divisors (356001597).

513620163 is a wasteful number, since it uses less digits than its factorization.

513620163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2717583 (or 2717577 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 513620163 is about 22663.1896034075. The cubic root of 513620163 is about 800.8429463856.

Adding to 513620163 its reverse (361026315), we get a palindrome (874646478).

The spelling of 513620163 in words is "five hundred thirteen million, six hundred twenty thousand, one hundred sixty-three".