1028120719 has 2 divisors, whose sum is σ = 1028120720. Its totient is φ = 1028120718.

The previous prime is 1028120699. The next prime is 1028120741. The reversal of 1028120719 is 9170218201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1028120719 - 2⁹ = 1028120207 is a prime.

It is a super-2 number, since 2×1028120719² = 2114064425674153922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1028120519) 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, 514060359 + 514060360.

It is an arithmetic number, because the mean of its divisors is an integer number (514060360).

Almost surely, 2^1028120719 is an apocalyptic number.

1028120719 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028120719 is an equidigital number, since it uses as much as digits as its factorization.

1028120719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 1028120719 is about 32064.3215895799. The cubic root of 1028120719 is about 1009.2870565790.

The spelling of 1028120719 in words is "one billion, twenty-eight million, one hundred twenty thousand, seven hundred nineteen".