531313004 has 24 divisors (see below), whose sum is σ = 950781888. Its totient is φ = 259675520.

The previous prime is 531312997. The next prime is 531313021. The reversal of 531313004 is 400313135.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 220832 + ... + 223224.

It is an arithmetic number, because the mean of its divisors is an integer number (39615912).

Almost surely, 2^531313004 is an apocalyptic number.

It is an amenable number.

531313004 is a deficient number, since it is larger than the sum of its proper divisors (419468884).

531313004 is a wasteful number, since it uses less digits than its factorization.

531313004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3625 (or 3623 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 531313004 is about 23050.2278513684. The cubic root of 531313004 is about 809.9349660737.

Adding to 531313004 its reverse (400313135), we get a palindrome (931626139).

The spelling of 531313004 in words is "five hundred thirty-one million, three hundred thirteen thousand, four".