128302019 has 2 divisors, whose sum is σ = 128302020. Its totient is φ = 128302018.

The previous prime is 128302001. The next prime is 128302021. The reversal of 128302019 is 910203821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128302019 - 2⁸ = 128301763 is a prime.

It is a super-2 number, since 2×128302019² = 32922816158952722, which contains 22 as substring.

Together with 128302021, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (128302039) 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, 64151009 + 64151010.

It is an arithmetic number, because the mean of its divisors is an integer number (64151010).

Almost surely, 2^128302019 is an apocalyptic number.

128302019 is a deficient number, since it is larger than the sum of its proper divisors (1).

128302019 is an equidigital number, since it uses as much as digits as its factorization.

128302019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 128302019 is about 11327.0481150210. The cubic root of 128302019 is about 504.3644837134.

The spelling of 128302019 in words is "one hundred twenty-eight million, three hundred two thousand, nineteen".