1378901743 has 2 divisors, whose sum is σ = 1378901744. Its totient is φ = 1378901742.

The previous prime is 1378901729. The next prime is 1378901749. The reversal of 1378901743 is 3471098731.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1378901743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1378901743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1378901749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689450871 + 689450872.

It is an arithmetic number, because the mean of its divisors is an integer number (689450872).

Almost surely, 2^1378901743 is an apocalyptic number.

1378901743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1378901743 is an equidigital number, since it uses as much as digits as its factorization.

1378901743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 1378901743 is about 37133.5662574981. The cubic root of 1378901743 is about 1113.0408578801.

The spelling of 1378901743 in words is "one billion, three hundred seventy-eight million, nine hundred one thousand, seven hundred forty-three".