531345412 has 48 divisors (see below), whose sum is σ = 1056988800. Its totient is φ = 231690240.

The previous prime is 531345401. The next prime is 531345413. The reversal of 531345412 is 214543135.

It is not an unprimeable number, because it can be changed into a prime (531345413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 632889 + ... + 633727.

It is an arithmetic number, because the mean of its divisors is an integer number (22020600).

Almost surely, 2^531345412 is an apocalyptic number.

531345412 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

531345412 is a deficient number, since it is larger than the sum of its proper divisors (525643388).

531345412 is a wasteful number, since it uses less digits than its factorization.

531345412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516 (or 1514 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 531345412 is about 23050.9308271922. The cubic root of 531345412 is about 809.9514333529.

Adding to 531345412 its reverse (214543135), we get a palindrome (745888547).

The spelling of 531345412 in words is "five hundred thirty-one million, three hundred forty-five thousand, four hundred twelve".