523431144 has 48 divisors (see below), whose sum is σ = 1419275520. Its totient is φ = 174274080.

The previous prime is 523431143. The next prime is 523431157. The reversal of 523431144 is 441134325.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (523431143) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 66169 + ... + 73655.

It is an arithmetic number, because the mean of its divisors is an integer number (29568240).

Almost surely, 2^523431144 is an apocalyptic number.

It is an amenable number.

523431144 is an abundant number, since it is smaller than the sum of its proper divisors (895844376).

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

523431144 is a wasteful number, since it uses less digits than its factorization.

523431144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8470 (or 8463 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 523431144 is about 22878.6176155816. The cubic root of 523431144 is about 805.9099538792.

Adding to 523431144 its reverse (441134325), we get a palindrome (964565469).

The spelling of 523431144 in words is "five hundred twenty-three million, four hundred thirty-one thousand, one hundred forty-four".