505412144 has 20 divisors (see below), whose sum is σ = 985248696. Its totient is φ = 251154432.

The previous prime is 505412129. The next prime is 505412161. The reversal of 505412144 is 441214505.

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 3 ways as a sum of consecutive naturals, for example, 94289 + ... + 99504.

Almost surely, 2^505412144 is an apocalyptic number.

It is an amenable number.

505412144 is a deficient number, since it is larger than the sum of its proper divisors (479836552).

505412144 is a wasteful number, since it uses less digits than its factorization.

505412144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193964 (or 193958 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 505412144 is about 22481.3732676632. The cubic root of 505412144 is about 796.5540026911.

Adding to 505412144 its reverse (441214505), we get a palindrome (946626649).

The spelling of 505412144 in words is "five hundred five million, four hundred twelve thousand, one hundred forty-four".