1361743693 has 2 divisors, whose sum is σ = 1361743694. Its totient is φ = 1361743692.

The previous prime is 1361743637. The next prime is 1361743697. The reversal of 1361743693 is 3963471631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1343442409 + 18301284 = 36653^2 + 4278^2 .

It is a cyclic number.

It is not a de Polignac number, because 1361743693 - 2¹⁷ = 1361612621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361743697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680871846 + 680871847.

It is an arithmetic number, because the mean of its divisors is an integer number (680871847).

Almost surely, 2^1361743693 is an apocalyptic number.

It is an amenable number.

1361743693 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361743693 is an equidigital number, since it uses as much as digits as its factorization.

1361743693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 43.

The square root of 1361743693 is about 36901.8115137997. The cubic root of 1361743693 is about 1108.4049522353.

The spelling of 1361743693 in words is "one billion, three hundred sixty-one million, seven hundred forty-three thousand, six hundred ninety-three".