1304250019 has 2 divisors, whose sum is σ = 1304250020. Its totient is φ = 1304250018.

The previous prime is 1304249993. The next prime is 1304250043. The reversal of 1304250019 is 9100524031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1304250019 is a prime.

It is a super-2 number, since 2×1304250019² = 3402136224123000722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1304249975 and 1304250002.

It is not a weakly prime, because it can be changed into another prime (1304250119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652125009 + 652125010.

It is an arithmetic number, because the mean of its divisors is an integer number (652125010).

Almost surely, 2^1304250019 is an apocalyptic number.

1304250019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304250019 is an equidigital number, since it uses as much as digits as its factorization.

1304250019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1304250019 is about 36114.4018225417. The cubic root of 1304250019 is about 1092.5809330398.

The spelling of 1304250019 in words is "one billion, three hundred four million, two hundred fifty thousand, nineteen".