1304020219 has 2 divisors, whose sum is σ = 1304020220. Its totient is φ = 1304020218.

The previous prime is 1304020199. The next prime is 1304020247. The reversal of 1304020219 is 9120204031.

It is a weak prime.

It is an emirp because it is prime and its reverse (9120204031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1304020219 - 2⁵ = 1304020187 is a prime.

It is a super-2 number, since 2×1304020219² = 3400937463121615922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1304020219.

It is not a weakly prime, because it can be changed into another prime (1304020019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652010109 + 652010110.

It is an arithmetic number, because the mean of its divisors is an integer number (652010110).

Almost surely, 2^1304020219 is an apocalyptic number.

1304020219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304020219 is an equidigital number, since it uses as much as digits as its factorization.

1304020219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1304020219 is about 36111.2201261602. The cubic root of 1304020219 is about 1092.5167608228.

The spelling of 1304020219 in words is "one billion, three hundred four million, twenty thousand, two hundred nineteen".