531234012 has 24 divisors (see below), whose sum is σ = 1273048336. Its totient is φ = 172291968.

The previous prime is 531234001. The next prime is 531234017. The reversal of 531234012 is 210432135.

It is a super-2 number, since 2×531234012² = 564419151011232288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 531234012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531234017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597793 + ... + 598680.

Almost surely, 2^531234012 is an apocalyptic number.

It is an amenable number.

531234012 is an abundant number, since it is smaller than the sum of its proper divisors (741814324).

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

531234012 is a wasteful number, since it uses less digits than its factorization.

531234012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196517 (or 1196515 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 531234012 is about 23048.5143122068. The cubic root of 531234012 is about 809.8948255456.

Adding to 531234012 its reverse (210432135), we get a palindrome (741666147).

The spelling of 531234012 in words is "five hundred thirty-one million, two hundred thirty-four thousand, twelve".