530865181 has 16 divisors (see below), whose sum is σ = 662375808. Its totient is φ = 413337600.

The previous prime is 530865169. The next prime is 530865211. The reversal of 530865181 is 181568035.

It is a cyclic number.

It is not a de Polignac number, because 530865181 - 2¹⁵ = 530832413 is a prime.

It is a super-2 number, since 2×530865181² = 563635680796325522, 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 530865181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530865121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158581 + ... + 161893.

It is an arithmetic number, because the mean of its divisors is an integer number (41398488).

Almost surely, 2^530865181 is an apocalyptic number.

It is an amenable number.

530865181 is a deficient number, since it is larger than the sum of its proper divisors (131510627).

530865181 is a wasteful number, since it uses less digits than its factorization.

530865181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5412.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 530865181 is about 23040.5117347684. The cubic root of 530865181 is about 809.7073479181.

The spelling of 530865181 in words is "five hundred thirty million, eight hundred sixty-five thousand, one hundred eighty-one".