1366376743 has 2 divisors, whose sum is σ = 1366376744. Its totient is φ = 1366376742.

The previous prime is 1366376741. The next prime is 1366376749. The reversal of 1366376743 is 3476736631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1366376743 - 2¹ = 1366376741 is a prime.

It is a super-3 number, since 3×1366376743³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 1366376741, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1366376693 and 1366376702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1366376741) 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, 683188371 + 683188372.

It is an arithmetic number, because the mean of its divisors is an integer number (683188372).

Almost surely, 2^1366376743 is an apocalyptic number.

1366376743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1366376743 is an equidigital number, since it uses as much as digits as its factorization.

1366376743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 46.

The square root of 1366376743 is about 36964.5335828818. The cubic root of 1366376743 is about 1109.6605685083.

It can be divided in two parts, 136637 and 6743, that added together give a triangular number (143380 = T₅₃₅).

The spelling of 1366376743 in words is "one billion, three hundred sixty-six million, three hundred seventy-six thousand, seven hundred forty-three".