530205161 has 4 divisors (see below), whose sum is σ = 532952532. Its totient is φ = 527457792.

The previous prime is 530205139. The next prime is 530205191. The reversal of 530205161 is 161502035.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 215355625 + 314849536 = 14675^2 + 17744^2 .

It is a cyclic number.

It is not a de Polignac number, because 530205161 - 2⁶ = 530205097 is a prime.

It is a super-2 number, since 2×530205161² = 562235025502071842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530205101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1373396 + ... + 1373781.

It is an arithmetic number, because the mean of its divisors is an integer number (133238133).

Almost surely, 2^530205161 is an apocalyptic number.

It is an amenable number.

530205161 is a deficient number, since it is larger than the sum of its proper divisors (2747371).

530205161 is a wasteful number, since it uses less digits than its factorization.

530205161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747370.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 530205161 is about 23026.1842475040. The cubic root of 530205161 is about 809.3716414166.

Adding to 530205161 its reverse (161502035), we get a palindrome (691707196).

The spelling of 530205161 in words is "five hundred thirty million, two hundred five thousand, one hundred sixty-one".