530981 has 4 divisors (see below), whose sum is σ = 579264. Its totient is φ = 482700.

The previous prime is 530977. The next prime is 530983. The reversal of 530981 is 189035.

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 530981 - 2² = 530977 is a prime.

It is a super-2 number, since 2×530981² = 563881644722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 530981.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 530981.

It is not an unprimeable number, because it can be changed into a prime (530983) 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, 24125 + ... + 24146.

It is an arithmetic number, because the mean of its divisors is an integer number (144816).

2⁵³⁰⁹⁸¹ is an apocalyptic number.

It is an amenable number.

530981 is a deficient number, since it is larger than the sum of its proper divisors (48283).

530981 is a wasteful number, since it uses less digits than its factorization.

530981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48282.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 530981 is about 728.6844310125. The cubic root of 530981 is about 80.9766228327.

The spelling of 530981 in words is "five hundred thirty thousand, nine hundred eighty-one".