530304981 has 4 divisors (see below), whose sum is σ = 707073312. Its totient is φ = 353536652.

The previous prime is 530304961. The next prime is 530304989. The reversal of 530304981 is 189403035.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 530304981 - 2⁵ = 530304949 is a prime.

It is a super-2 number, since 2×530304981² = 562446745746820722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530304989) 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, 88384161 + ... + 88384166.

It is an arithmetic number, because the mean of its divisors is an integer number (176768328).

Almost surely, 2^530304981 is an apocalyptic number.

It is an amenable number.

530304981 is a deficient number, since it is larger than the sum of its proper divisors (176768331).

530304981 is a wasteful number, since it uses less digits than its factorization.

530304981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176768330.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 530304981 is about 23028.3516778774. The cubic root of 530304981 is about 809.4224308176.

The spelling of 530304981 in words is "five hundred thirty million, three hundred four thousand, nine hundred eighty-one".