523031144 has 8 divisors (see below), whose sum is σ = 980683410. Its totient is φ = 261515568.

The previous prime is 523031143. The next prime is 523031161. The reversal of 523031144 is 441130325.

It can be written as a sum of positive squares in only one way, i.e., 330876100 + 192155044 = 18190^2 + 13862^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (523031143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32689439 + ... + 32689454.

Almost surely, 2^523031144 is an apocalyptic number.

It is an amenable number.

523031144 is a deficient number, since it is larger than the sum of its proper divisors (457652266).

523031144 is a wasteful number, since it uses less digits than its factorization.

523031144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65378899 (or 65378895 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 523031144 is about 22869.8741579397. The cubic root of 523031144 is about 805.7046125555.

Adding to 523031144 its reverse (441130325), we get a palindrome (964161469).

The spelling of 523031144 in words is "five hundred twenty-three million, thirty-one thousand, one hundred forty-four".