1347113681 has 2 divisors, whose sum is σ = 1347113682. Its totient is φ = 1347113680.

The previous prime is 1347113639. The next prime is 1347113687. The reversal of 1347113681 is 1863117431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1029383056 + 317730625 = 32084^2 + 17825^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1347113681 is a prime.

It is a super-3 number, since 3×1347113681³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1347113687) 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, 673556840 + 673556841.

It is an arithmetic number, because the mean of its divisors is an integer number (673556841).

Almost surely, 2^1347113681 is an apocalyptic number.

It is an amenable number.

1347113681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1347113681 is an equidigital number, since it uses as much as digits as its factorization.

1347113681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 1347113681 is about 36703.0472985555. The cubic root of 1347113681 is about 1104.4212364687.

The spelling of 1347113681 in words is "one billion, three hundred forty-seven million, one hundred thirteen thousand, six hundred eighty-one".