513136220 has 24 divisors (see below), whose sum is σ = 1079668464. Its totient is φ = 204857856.

The previous prime is 513136219. The next prime is 513136231. The reversal of 513136220 is 22631315.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14069 + ... + 34988.

It is an arithmetic number, because the mean of its divisors is an integer number (44986186).

Almost surely, 2^513136220 is an apocalyptic number.

It is an amenable number.

513136220 is an abundant number, since it is smaller than the sum of its proper divisors (566532244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513136220 is a wasteful number, since it uses less digits than its factorization.

513136220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49589 (or 49587 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 513136220 is about 22652.5102361747. The cubic root of 513136220 is about 800.5913440326.

Adding to 513136220 its reverse (22631315), we get a palindrome (535767535).

The spelling of 513136220 in words is "five hundred thirteen million, one hundred thirty-six thousand, two hundred twenty".