513873236 has 24 divisors (see below), whose sum is σ = 929510400. Its totient is φ = 248320800.

The previous prime is 513873233. The next prime is 513873247. The reversal of 513873236 is 632378315.

It is a super-2 number, since 2×513873236² = 528131405354223392, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 513873236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513873233) 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 7 ways as a sum of consecutive naturals, for example, 110690 + ... + 115238.

It is an arithmetic number, because the mean of its divisors is an integer number (38729600).

Almost surely, 2^513873236 is an apocalyptic number.

It is an amenable number.

513873236 is a deficient number, since it is larger than the sum of its proper divisors (415637164).

513873236 is a wasteful number, since it uses less digits than its factorization.

513873236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5495 (or 5493 counting only the distinct ones).

The product of its digits is 90720, while the sum is 38.

The square root of 513873236 is about 22668.7722649463. The cubic root of 513873236 is about 800.9744563117.

The spelling of 513873236 in words is "five hundred thirteen million, eight hundred seventy-three thousand, two hundred thirty-six".