1385743 has 2 divisors, whose sum is σ = 1385744. Its totient is φ = 1385742.

The previous prime is 1385693. The next prime is 1385749. The reversal of 1385743 is 3475831.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1385743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1385749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692871 + 692872.

It is an arithmetic number, because the mean of its divisors is an integer number (692872).

2^1385743 is an apocalyptic number.

1385743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385743 is an equidigital number, since it uses as much as digits as its factorization.

1385743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 31.

The square root of 1385743 is about 1177.1758577205. The cubic root of 1385743 is about 111.4878561985.

The spelling of 1385743 in words is "one million, three hundred eighty-five thousand, seven hundred forty-three".