513205108 has 24 divisors (see below), whose sum is σ = 967826048. Its totient is φ = 236709216.

The previous prime is 513205081. The next prime is 513205109. The reversal of 513205108 is 801502315.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513205109) by changing a digit.

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, 128185 + ... + 132127.

Almost surely, 2^513205108 is an apocalyptic number.

It is an amenable number.

513205108 is a deficient number, since it is larger than the sum of its proper divisors (454620940).

513205108 is a wasteful number, since it uses less digits than its factorization.

513205108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6463 (or 6461 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 513205108 is about 22654.0307230303. The cubic root of 513205108 is about 800.6271686126.

The spelling of 513205108 in words is "five hundred thirteen million, two hundred five thousand, one hundred eight".