1385303 has 2 divisors, whose sum is σ = 1385304. Its totient is φ = 1385302.

The previous prime is 1385299. The next prime is 1385327. The reversal of 1385303 is 3035831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1385303 - 2² = 1385299 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1385333) 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, 692651 + 692652.

It is an arithmetic number, because the mean of its divisors is an integer number (692652).

2^1385303 is an apocalyptic number.

1385303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385303 is an equidigital number, since it uses as much as digits as its factorization.

1385303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1385303 is about 1176.9889549184. The cubic root of 1385303 is about 111.4760551047.

Subtracting from 1385303 its sum of digits (23), we obtain a triangular number (1385280 = T₁₆₆₄).

The spelling of 1385303 in words is "one million, three hundred eighty-five thousand, three hundred three".