260540513 has 2 divisors, whose sum is σ = 260540514. Its totient is φ = 260540512.

The previous prime is 260540507. The next prime is 260540549. The reversal of 260540513 is 315045062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240622144 + 19918369 = 15512^2 + 4463^2 .

It is a cyclic number.

It is not a de Polignac number, because 260540513 - 2¹⁴ = 260524129 is a prime.

It is equal to p_14223716 and since 260540513 and 14223716 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (260440513) 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 as a sum of consecutive naturals, namely, 130270256 + 130270257.

It is an arithmetic number, because the mean of its divisors is an integer number (130270257).

Almost surely, 2^260540513 is an apocalyptic number.

It is an amenable number.

260540513 is a deficient number, since it is larger than the sum of its proper divisors (1).

260540513 is an equidigital number, since it uses as much as digits as its factorization.

260540513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 260540513 is about 16141.2673913792. The cubic root of 260540513 is about 638.6924092056.

Adding to 260540513 its reverse (315045062), we get a palindrome (575585575).

The spelling of 260540513 in words is "two hundred sixty million, five hundred forty thousand, five hundred thirteen".