530243531 has 4 divisors (see below), whose sum is σ = 530314752. Its totient is φ = 530172312.

The previous prime is 530243501. The next prime is 530243543. The reversal of 530243531 is 135342035.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 530243531 - 2¹⁴ = 530227147 is a prime.

It is a super-2 number, since 2×530243531² = 562316404334695922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 530243531.

It is not an unprimeable number, because it can be changed into a prime (530243501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22940 + ... + 39833.

It is an arithmetic number, because the mean of its divisors is an integer number (132578688).

Almost surely, 2^530243531 is an apocalyptic number.

530243531 is a deficient number, since it is larger than the sum of its proper divisors (71221).

530243531 is an equidigital number, since it uses as much as digits as its factorization.

530243531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71220.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 530243531 is about 23027.0174143331. The cubic root of 530243531 is about 809.3911652054.

Adding to 530243531 its reverse (135342035), we get a palindrome (665585566).

The spelling of 530243531 in words is "five hundred thirty million, two hundred forty-three thousand, five hundred thirty-one".