530965 has 8 divisors (see below), whose sum is σ = 643968. Its totient is φ = 420240.

The previous prime is 530947. The next prime is 530969. The reversal of 530965 is 569035.

It is a happy number.

530965 is a nontrivial binomial coefficient, being equal to C(1031, 2).

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

It is not a de Polignac number, because 530965 - 2⁷ = 530837 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530969) 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 7 ways as a sum of consecutive naturals, for example, 1 + ... + 1030.

It is an arithmetic number, because the mean of its divisors is an integer number (80496).

2⁵³⁰⁹⁶⁵ is an apocalyptic number.

530965 is the 1030-th triangular number.

530965 is the 344-th centered nonagonal number.

It is an amenable number.

530965 is a deficient number, since it is larger than the sum of its proper divisors (113003).

530965 is a wasteful number, since it uses less digits than its factorization.

530965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 530965 is about 728.6734522404. The cubic root of 530965 is about 80.9758094709.

The spelling of 530965 in words is "five hundred thirty thousand, nine hundred sixty-five".