531371812 has 12 divisors (see below), whose sum is σ = 951526576. Its totient is φ = 259507080.

The previous prime is 531371809. The next prime is 531371833. The reversal of 531371812 is 218173135.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1544514 + ... + 1544857.

Almost surely, 2^531371812 is an apocalyptic number.

It is an amenable number.

531371812 is a deficient number, since it is larger than the sum of its proper divisors (420154764).

531371812 is a wasteful number, since it uses less digits than its factorization.

531371812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3089418 (or 3089416 counting only the distinct ones).

The product of its digits is 5040, while the sum is 31.

The square root of 531371812 is about 23051.5034650671. The cubic root of 531371812 is about 809.9648473288.

The spelling of 531371812 in words is "five hundred thirty-one million, three hundred seventy-one thousand, eight hundred twelve".