509134836 has 96 divisors (see below), whose sum is σ = 1462164480. Its totient is φ = 134567424.

The previous prime is 509134807. The next prime is 509134859. The reversal of 509134836 is 638431905.

It is a junction number, because it is equal to n+sod(n) for n = 509134794 and 509134803.

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 31 ways as a sum of consecutive naturals, for example, 81231 + ... + 87273.

It is an arithmetic number, because the mean of its divisors is an integer number (15230880).

Almost surely, 2^509134836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 509134836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (731082240).

509134836 is an abundant number, since it is smaller than the sum of its proper divisors (953029644).

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

509134836 is a wasteful number, since it uses less digits than its factorization.

509134836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6133 (or 6131 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 509134836 is about 22564.0163977958. The cubic root of 509134836 is about 798.5049347989.

The spelling of 509134836 in words is "five hundred nine million, one hundred thirty-four thousand, eight hundred thirty-six".