1304003 has 2 divisors, whose sum is σ = 1304004. Its totient is φ = 1304002.

The previous prime is 1303987. The next prime is 1304029. The reversal of 1304003 is 3004031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1304003 - 2⁴ = 1303987 is a prime.

It is a super-3 number, since 3×1304003³ = 6652073303337624081, which contains 333 as substring.

It is a Sophie Germain prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1304033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652001 + 652002.

It is an arithmetic number, because the mean of its divisors is an integer number (652002).

2^1304003 is an apocalyptic number.

1304003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304003 is an equidigital number, since it uses as much as digits as its factorization.

1304003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 1304003 is about 1141.9295074566. The cubic root of 1304003 is about 109.2511952071.

Adding to 1304003 its reverse (3004031), we get a palindrome (4308034).

The spelling of 1304003 in words is "one million, three hundred four thousand, three".