513022236 has 12 divisors (see below), whose sum is σ = 1197051912. Its totient is φ = 171007408.

The previous prime is 513022231. The next prime is 513022271. The reversal of 513022236 is 632220315.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513022231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21375915 + ... + 21375938.

It is an arithmetic number, because the mean of its divisors is an integer number (99754326).

Almost surely, 2^513022236 is an apocalyptic number.

It is an amenable number.

513022236 is an abundant number, since it is smaller than the sum of its proper divisors (684029676).

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

513022236 is a wasteful number, since it uses less digits than its factorization.

513022236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42751860 (or 42751858 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 513022236 is about 22649.9941721847. The cubic root of 513022236 is about 800.5320606442.

The spelling of 513022236 in words is "five hundred thirteen million, twenty-two thousand, two hundred thirty-six".