1300260561 has 16 divisors (see below), whose sum is σ = 1756525824. Its totient is φ = 855492224.

The previous prime is 1300260553. The next prime is 1300260631. The reversal of 1300260561 is 1650620031.

It is a cyclic number.

It is not a de Polignac number, because 1300260561 - 2³ = 1300260553 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1300260551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61960 + ... + 80246.

It is an arithmetic number, because the mean of its divisors is an integer number (109782864).

Almost surely, 2^1300260561 is an apocalyptic number.

It is an amenable number.

1300260561 is a deficient number, since it is larger than the sum of its proper divisors (456265263).

1300260561 is a wasteful number, since it uses less digits than its factorization.

1300260561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18600.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1300260561 is about 36059.1259045474. The cubic root of 1300260561 is about 1091.4657947083.

Adding to 1300260561 its reverse (1650620031), we get a palindrome (2950880592).

The spelling of 1300260561 in words is "one billion, three hundred million, two hundred sixty thousand, five hundred sixty-one".