513013236 has 12 divisors (see below), whose sum is σ = 1197030912. Its totient is φ = 171004408.

The previous prime is 513013231. The next prime is 513013253. The reversal of 513013236 is 632310315.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×513013236² = 526365160622383392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513013231) 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, 21375540 + ... + 21375563.

It is an arithmetic number, because the mean of its divisors is an integer number (99752576).

Almost surely, 2^513013236 is an apocalyptic number.

It is an amenable number.

513013236 is an abundant number, since it is smaller than the sum of its proper divisors (684017676).

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

513013236 is a wasteful number, since it uses less digits than its factorization.

513013236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42751110 (or 42751108 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 513013236 is about 22649.7954957655. The cubic root of 513013236 is about 800.5273793457.

The spelling of 513013236 in words is "five hundred thirteen million, thirteen thousand, two hundred thirty-six".