1304287163 has 2 divisors, whose sum is σ = 1304287164. Its totient is φ = 1304287162.

The previous prime is 1304287147. The next prime is 1304287199. The reversal of 1304287163 is 3617824031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1304287163 - 2⁴ = 1304287147 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1304287063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652143581 + 652143582.

It is an arithmetic number, because the mean of its divisors is an integer number (652143582).

Almost surely, 2^1304287163 is an apocalyptic number.

1304287163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304287163 is an equidigital number, since it uses as much as digits as its factorization.

1304287163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 1304287163 is about 36114.9160735561. The cubic root of 1304287163 is about 1092.5913048857.

The spelling of 1304287163 in words is "one billion, three hundred four million, two hundred eighty-seven thousand, one hundred sixty-three".