1304504533 has 2 divisors, whose sum is σ = 1304504534. Its totient is φ = 1304504532.

The previous prime is 1304504507. The next prime is 1304504543. The reversal of 1304504533 is 3354054031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1289743569 + 14760964 = 35913^2 + 3842^2 .

It is a cyclic number.

It is not a de Polignac number, because 1304504533 - 2²⁵ = 1270950101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1304504543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652252266 + 652252267.

It is an arithmetic number, because the mean of its divisors is an integer number (652252267).

Almost surely, 2^1304504533 is an apocalyptic number.

It is an amenable number.

1304504533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304504533 is an equidigital number, since it uses as much as digits as its factorization.

1304504533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 1304504533 is about 36117.9253695447. The cubic root of 1304504533 is about 1092.6519979055.

Adding to 1304504533 its reverse (3354054031), we get a palindrome (4658558564).

The spelling of 1304504533 in words is "one billion, three hundred four million, five hundred four thousand, five hundred thirty-three".