531230653 has 2 divisors, whose sum is σ = 531230654. Its totient is φ = 531230652.

The previous prime is 531230647. The next prime is 531230683. The reversal of 531230653 is 356032135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 525188889 + 6041764 = 22917^2 + 2458^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531230653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531230683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265615326 + 265615327.

It is an arithmetic number, because the mean of its divisors is an integer number (265615327).

Almost surely, 2^531230653 is an apocalyptic number.

It is an amenable number.

531230653 is a deficient number, since it is larger than the sum of its proper divisors (1).

531230653 is an equidigital number, since it uses as much as digits as its factorization.

531230653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 531230653 is about 23048.4414440543. The cubic root of 531230653 is about 809.8931185499.

Adding to 531230653 its reverse (356032135), we get a palindrome (887262788).

The spelling of 531230653 in words is "five hundred thirty-one million, two hundred thirty thousand, six hundred fifty-three".