530868181 has 2 divisors, whose sum is σ = 530868182. Its totient is φ = 530868180.

The previous prime is 530868161. The next prime is 530868187. The reversal of 530868181 is 181868035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 526702500 + 4165681 = 22950^2 + 2041^2 .

It is a cyclic number.

It is not a de Polignac number, because 530868181 - 2²¹ = 528771029 is a prime.

It is a super-2 number, since 2×530868181² = 563642051196497522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (530868187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265434090 + 265434091.

It is an arithmetic number, because the mean of its divisors is an integer number (265434091).

Almost surely, 2^530868181 is an apocalyptic number.

It is an amenable number.

530868181 is a deficient number, since it is larger than the sum of its proper divisors (1).

530868181 is an equidigital number, since it uses as much as digits as its factorization.

530868181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 530868181 is about 23040.5768373971. The cubic root of 530868181 is about 809.7088731750.

The spelling of 530868181 in words is "five hundred thirty million, eight hundred sixty-eight thousand, one hundred eighty-one".