530101261 has 2 divisors, whose sum is σ = 530101262. Its totient is φ = 530101260.

The previous prime is 530101249. The next prime is 530101277. The reversal of 530101261 is 162101035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 466819236 + 63282025 = 21606^2 + 7955^2 .

It is a cyclic number.

It is not a de Polignac number, because 530101261 - 2⁷ = 530101133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (530101241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265050630 + 265050631.

It is an arithmetic number, because the mean of its divisors is an integer number (265050631).

Almost surely, 2^530101261 is an apocalyptic number.

It is an amenable number.

530101261 is a deficient number, since it is larger than the sum of its proper divisors (1).

530101261 is an equidigital number, since it uses as much as digits as its factorization.

530101261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 530101261 is about 23023.9280097902. The cubic root of 530101261 is about 809.3187693000.

Adding to 530101261 its reverse (162101035), we get a palindrome (692202296).

The spelling of 530101261 in words is "five hundred thirty million, one hundred one thousand, two hundred sixty-one".