531203 has 2 divisors, whose sum is σ = 531204. Its totient is φ = 531202.

The previous prime is 531197. The next prime is 531229. The reversal of 531203 is 302135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531203 - 2⁸ = 530947 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a nialpdrome in base 14.

It is not a weakly prime, because it can be changed into another prime (531253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265601 + 265602.

It is an arithmetic number, because the mean of its divisors is an integer number (265602).

2⁵³¹²⁰³ is an apocalyptic number.

531203 is a deficient number, since it is larger than the sum of its proper divisors (1).

531203 is an equidigital number, since it uses as much as digits as its factorization.

531203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 531203 is about 728.8367444085. The cubic root of 531203 is about 80.9879065418.

Adding to 531203 its reverse (302135), we get a palindrome (833338).

The spelling of 531203 in words is "five hundred thirty-one thousand, two hundred three".