128232719 has 2 divisors, whose sum is σ = 128232720. Its totient is φ = 128232718.

The previous prime is 128232679. The next prime is 128232737. The reversal of 128232719 is 917232821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128232719 - 2¹⁶ = 128167183 is a prime.

It is a super-2 number, since 2×128232719² = 32887260444265922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128232799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64116359 + 64116360.

It is an arithmetic number, because the mean of its divisors is an integer number (64116360).

Almost surely, 2^128232719 is an apocalyptic number.

128232719 is a deficient number, since it is larger than the sum of its proper divisors (1).

128232719 is an equidigital number, since it uses as much as digits as its factorization.

128232719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 128232719 is about 11323.9886524140. The cubic root of 128232719 is about 504.2736595942.

The spelling of 128232719 in words is "one hundred twenty-eight million, two hundred thirty-two thousand, seven hundred nineteen".