530639281 has 2 divisors, whose sum is σ = 530639282. Its totient is φ = 530639280.

The previous prime is 530639273. The next prime is 530639293. The reversal of 530639281 is 182936035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 482197681 + 48441600 = 21959^2 + 6960^2 .

It is a cyclic number.

It is not a de Polignac number, because 530639281 - 2³ = 530639273 is a prime.

It is a super-2 number, since 2×530639281² = 563156093080393922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 530639281.

It is not a weakly prime, because it can be changed into another prime (530639231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265319640 + 265319641.

It is an arithmetic number, because the mean of its divisors is an integer number (265319641).

Almost surely, 2^530639281 is an apocalyptic number.

It is an amenable number.

530639281 is a deficient number, since it is larger than the sum of its proper divisors (1).

530639281 is an equidigital number, since it uses as much as digits as its factorization.

530639281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 530639281 is about 23035.6089782754. The cubic root of 530639281 is about 809.5924795562.

The spelling of 530639281 in words is "five hundred thirty million, six hundred thirty-nine thousand, two hundred eighty-one".