502135144 has 48 divisors (see below), whose sum is σ = 1115928900. Its totient is φ = 211131648.

The previous prime is 502135133. The next prime is 502135181. The reversal of 502135144 is 441531205.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 414936900 + 87198244 = 20370^2 + 9338^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 8692 + ... + 32860.

Almost surely, 2^502135144 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 502135144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557964450).

502135144 is an abundant number, since it is smaller than the sum of its proper divisors (613793756).

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

502135144 is a wasteful number, since it uses less digits than its factorization.

502135144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24242 (or 24231 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 502135144 is about 22408.3721854132. The cubic root of 502135144 is about 794.8286982418.

Adding to 502135144 its reverse (441531205), we get a palindrome (943666349).

The spelling of 502135144 in words is "five hundred two million, one hundred thirty-five thousand, one hundred forty-four".