1204003 has 2 divisors, whose sum is σ = 1204004. Its totient is φ = 1204002.

The previous prime is 1203971. The next prime is 1204019. The reversal of 1204003 is 3004021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1204003 - 2⁵ = 1203971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1204103) 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, 602001 + 602002.

It is an arithmetic number, because the mean of its divisors is an integer number (602002).

2^1204003 is an apocalyptic number.

1204003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204003 is an equidigital number, since it uses as much as digits as its factorization.

1204003 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1204003 is about 1097.2707049767. The cubic root of 1204003 is about 106.3838875012.

Adding to 1204003 its reverse (3004021), we get a palindrome (4208024).

The spelling of 1204003 in words is "one million, two hundred four thousand, three".