531032393 has 2 divisors, whose sum is σ = 531032394. Its totient is φ = 531032392.

The previous prime is 531032363. The next prime is 531032401. The reversal of 531032393 is 393230135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 428779849 + 102252544 = 20707^2 + 10112^2 .

It is a cyclic number.

It is not a de Polignac number, because 531032393 - 2¹⁶ = 530966857 is a prime.

It is not a weakly prime, because it can be changed into another prime (531032363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265516196 + 265516197.

It is an arithmetic number, because the mean of its divisors is an integer number (265516197).

Almost surely, 2^531032393 is an apocalyptic number.

It is an amenable number.

531032393 is a deficient number, since it is larger than the sum of its proper divisors (1).

531032393 is an equidigital number, since it uses as much as digits as its factorization.

531032393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290, while the sum is 29.

The square root of 531032393 is about 23044.1401011190. The cubic root of 531032393 is about 809.7923529106.

The spelling of 531032393 in words is "five hundred thirty-one million, thirty-two thousand, three hundred ninety-three".