1300130261 has 2 divisors, whose sum is σ = 1300130262. Its totient is φ = 1300130260.

The previous prime is 1300130239. The next prime is 1300130287. The reversal of 1300130261 is 1620310031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1171761361 + 128368900 = 34231^2 + 11330^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1300130261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1300130561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650065130 + 650065131.

It is an arithmetic number, because the mean of its divisors is an integer number (650065131).

Almost surely, 2^1300130261 is an apocalyptic number.

It is an amenable number.

1300130261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1300130261 is an equidigital number, since it uses as much as digits as its factorization.

1300130261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1300130261 is about 36057.3191044481. The cubic root of 1300130261 is about 1091.4293346458.

Adding to 1300130261 its reverse (1620310031), we get a palindrome (2920440292).

The spelling of 1300130261 in words is "one billion, three hundred million, one hundred thirty thousand, two hundred sixty-one".