530121204 has 144 divisors (see below), whose sum is σ = 1520762880. Its totient is φ = 154820160.

The previous prime is 530121203. The next prime is 530121281. The reversal of 530121204 is 402121035.

530121204 is a `hidden beast` number, since 530 + 12 + 120 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530121203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 487149 + ... + 488235.

Almost surely, 2^530121204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 530121204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (760381440).

530121204 is an abundant number, since it is smaller than the sum of its proper divisors (990641676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

530121204 is a wasteful number, since it uses less digits than its factorization.

530121204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170 (or 1165 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 530121204 is about 23024.3610986277. The cubic root of 530121204 is about 809.3289183307.

Adding to 530121204 its reverse (402121035), we get a palindrome (932242239).

It can be divided in two parts, 5301 and 21204, that multiplied together give a square (112402404 = 10602²).

The spelling of 530121204 in words is "five hundred thirty million, one hundred twenty-one thousand, two hundred four".