1385071 has 2 divisors, whose sum is σ = 1385072. Its totient is φ = 1385070.

The previous prime is 1385057. The next prime is 1385077. The reversal of 1385071 is 1705831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1385071 - 2⁵ = 1385039 is a prime.

1385071 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1385077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692535 + 692536.

It is an arithmetic number, because the mean of its divisors is an integer number (692536).

2^1385071 is an apocalyptic number.

1385071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385071 is an equidigital number, since it uses as much as digits as its factorization.

1385071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 1385071 is about 1176.8903942169. The cubic root of 1385071 is about 111.4698317036.

The spelling of 1385071 in words is "one million, three hundred eighty-five thousand, seventy-one".