1383003 has 12 divisors (see below), whose sum is σ = 2062528. Its totient is φ = 892080.

The previous prime is 1382999. The next prime is 1383037. The reversal of 1383003 is 3003831.

It is not a de Polignac number, because 1383003 - 2² = 1382999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1383043) 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 in 11 ways as a sum of consecutive naturals, for example, 2200 + ... + 2757.

2^1383003 is an apocalyptic number.

1383003 is a deficient number, since it is larger than the sum of its proper divisors (679525).

1383003 is a wasteful number, since it uses less digits than its factorization.

1383003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4994 (or 4991 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1383003 is about 1176.0114795358. The cubic root of 1383003 is about 111.4143268632.

Adding to 1383003 its reverse (3003831), we get a palindrome (4386834).

It can be divided in two parts, 138 and 3003, that multiplied together give a palindrome (414414).

The spelling of 1383003 in words is "one million, three hundred eighty-three thousand, three".