531236164 has 12 divisors (see below), whose sum is σ = 938868588. Its totient is φ = 262988000.

The previous prime is 531236137. The next prime is 531236183. The reversal of 531236164 is 461632135.

It can be written as a sum of positive squares in 2 ways, for example, as 331240000 + 199996164 = 18200^2 + 14142^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657067 + ... + 657874.

It is an arithmetic number, because the mean of its divisors is an integer number (78239049).

Almost surely, 2^531236164 is an apocalyptic number.

It is an amenable number.

531236164 is a deficient number, since it is larger than the sum of its proper divisors (407632424).

531236164 is a wasteful number, since it uses less digits than its factorization.

531236164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315046 (or 1315044 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 531236164 is about 23048.5609962965. The cubic root of 531236164 is about 809.8959191573.

Adding to 531236164 its reverse (461632135), we get a palindrome (992868299).

The spelling of 531236164 in words is "five hundred thirty-one million, two hundred thirty-six thousand, one hundred sixty-four".