530545 has 4 divisors (see below), whose sum is σ = 636660. Its totient is φ = 424432.

The previous prime is 530539. The next prime is 530549. The reversal of 530545 is 545035.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 394384 + 136161 = 628^2 + 369^2 .

It is a cyclic number.

It is not a de Polignac number, because 530545 - 2⁵ = 530513 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (530549) 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 in 3 ways as a sum of consecutive naturals, for example, 53050 + ... + 53059.

It is an arithmetic number, because the mean of its divisors is an integer number (159165).

2⁵³⁰⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

530545 is a deficient number, since it is larger than the sum of its proper divisors (106115).

530545 is a wasteful number, since it uses less digits than its factorization.

530545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106114.

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 530545 is about 728.3852002890. The cubic root of 530545 is about 80.9544528772.

The spelling of 530545 in words is "five hundred thirty thousand, five hundred forty-five".