1313284729 has 2 divisors, whose sum is σ = 1313284730. Its totient is φ = 1313284728.

The previous prime is 1313284639. The next prime is 1313284741. The reversal of 1313284729 is 9274823131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1100912400 + 212372329 = 33180^2 + 14573^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313284729 - 2⁷ = 1313284601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1313284691 and 1313284700.

It is not a weakly prime, because it can be changed into another prime (1313284789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656642364 + 656642365.

It is an arithmetic number, because the mean of its divisors is an integer number (656642365).

Almost surely, 2^1313284729 is an apocalyptic number.

It is an amenable number.

1313284729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313284729 is an equidigital number, since it uses as much as digits as its factorization.

1313284729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 40.

The square root of 1313284729 is about 36239.2705362567. The cubic root of 1313284729 is about 1095.0979469386.

The spelling of 1313284729 in words is "one billion, three hundred thirteen million, two hundred eighty-four thousand, seven hundred twenty-nine".