1385744111 has 2 divisors, whose sum is σ = 1385744112. Its totient is φ = 1385744110.

The previous prime is 1385744093. The next prime is 1385744131. The reversal of 1385744111 is 1114475831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1385744111 - 2¹⁰ = 1385743087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1385744131) 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, 692872055 + 692872056.

It is an arithmetic number, because the mean of its divisors is an integer number (692872056).

Almost surely, 2^1385744111 is an apocalyptic number.

1385744111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385744111 is an equidigital number, since it uses as much as digits as its factorization.

1385744111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 35.

The square root of 1385744111 is about 37225.5840921267. The cubic root of 1385744111 is about 1114.8788599313.

The spelling of 1385744111 in words is "one billion, three hundred eighty-five million, seven hundred forty-four thousand, one hundred eleven".