530145233 has 4 divisors (see below), whose sum is σ = 530957748. Its totient is φ = 529332720.

The previous prime is 530145227. The next prime is 530145241. The reversal of 530145233 is 332541035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332541035 = 5 ⋅66508207.

It can be written as a sum of positive squares in 2 ways, for example, as 53465344 + 476679889 = 7312^2 + 21833^2 .

It is a cyclic number.

It is not a de Polignac number, because 530145233 - 2⁸ = 530144977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530148233) 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 in 3 ways as a sum of consecutive naturals, for example, 405278 + ... + 406583.

It is an arithmetic number, because the mean of its divisors is an integer number (132739437).

Almost surely, 2^530145233 is an apocalyptic number.

It is an amenable number.

530145233 is a deficient number, since it is larger than the sum of its proper divisors (812515).

530145233 is an equidigital number, since it uses as much as digits as its factorization.

530145233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812514.

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

The square root of 530145233 is about 23024.8829095828. The cubic root of 530145233 is about 809.3411463964.

Adding to 530145233 its reverse (332541035), we get a palindrome (862686268).

The spelling of 530145233 in words is "five hundred thirty million, one hundred forty-five thousand, two hundred thirty-three".