530115221 has 8 divisors (see below), whose sum is σ = 548319744. Its totient is φ = 511979760.

The previous prime is 530115217. The next prime is 530115251. The reversal of 530115221 is 122511035.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 530115221 - 2² = 530115217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 530115193 and 530115202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530115251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1406 + ... + 32591.

It is an arithmetic number, because the mean of its divisors is an integer number (68539968).

Almost surely, 2^530115221 is an apocalyptic number.

It is an amenable number.

530115221 is a deficient number, since it is larger than the sum of its proper divisors (18204523).

530115221 is a wasteful number, since it uses less digits than its factorization.

530115221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34531.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 530115221 is about 23024.2311706602. The cubic root of 530115221 is about 809.3258735973.

Adding to 530115221 its reverse (122511035), we get a palindrome (652626256).

The spelling of 530115221 in words is "five hundred thirty million, one hundred fifteen thousand, two hundred twenty-one".