1306713557 has 2 divisors, whose sum is σ = 1306713558. Its totient is φ = 1306713556.

The previous prime is 1306713553. The next prime is 1306713593. The reversal of 1306713557 is 7553176031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1208188081 + 98525476 = 34759^2 + 9926^2 .

It is a cyclic number.

It is not a de Polignac number, because 1306713557 - 2² = 1306713553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1306713557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1306713553) 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, 653356778 + 653356779.

It is an arithmetic number, because the mean of its divisors is an integer number (653356779).

Almost surely, 2^1306713557 is an apocalyptic number.

It is an amenable number.

1306713557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1306713557 is an equidigital number, since it uses as much as digits as its factorization.

1306713557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 66150, while the sum is 38.

The square root of 1306713557 is about 36148.4931497843. The cubic root of 1306713557 is about 1093.2684090335.

Adding to 1306713557 its reverse (7553176031), we get a palindrome (8859889588).

The spelling of 1306713557 in words is "one billion, three hundred six million, seven hundred thirteen thousand, five hundred fifty-seven".