531233249 has 2 divisors, whose sum is σ = 531233250. Its totient is φ = 531233248.

The previous prime is 531233203. The next prime is 531233317. The reversal of 531233249 is 942332135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 370755025 + 160478224 = 19255^2 + 12668^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531233249 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (531233149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265616624 + 265616625.

It is an arithmetic number, because the mean of its divisors is an integer number (265616625).

Almost surely, 2^531233249 is an apocalyptic number.

It is an amenable number.

531233249 is a deficient number, since it is larger than the sum of its proper divisors (1).

531233249 is an equidigital number, since it uses as much as digits as its factorization.

531233249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 32.

The square root of 531233249 is about 23048.4977601578. The cubic root of 531233249 is about 809.8944378005.

The spelling of 531233249 in words is "five hundred thirty-one million, two hundred thirty-three thousand, two hundred forty-nine".