1042003 has 4 divisors (see below), whose sum is σ = 1075648. Its totient is φ = 1008360.

The previous prime is 1042001. The next prime is 1042021. The reversal of 1042003 is 3002401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1042003 - 2¹ = 1042001 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16776 + ... + 16837.

It is an arithmetic number, because the mean of its divisors is an integer number (268912).

2^1042003 is an apocalyptic number.

1042003 is a deficient number, since it is larger than the sum of its proper divisors (33645).

1042003 is an equidigital number, since it uses as much as digits as its factorization.

1042003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33644.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1042003 is about 1020.7854818717. The cubic root of 1042003 is about 101.3809422043.

Adding to 1042003 its reverse (3002401), we get a palindrome (4044404).

The spelling of 1042003 in words is "one million, forty-two thousand, three".