128474719 has 2 divisors, whose sum is σ = 128474720. Its totient is φ = 128474718.

The previous prime is 128474699. The next prime is 128474737. The reversal of 128474719 is 917474821.

It is a strong prime.

It is an emirp because it is prime and its reverse (917474821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128474719 - 2¹¹ = 128472671 is a prime.

It is a super-2 number, since 2×128474719² = 33011506844257922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128474419) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64237359 + 64237360.

It is an arithmetic number, because the mean of its divisors is an integer number (64237360).

Almost surely, 2^128474719 is an apocalyptic number.

128474719 is a deficient number, since it is larger than the sum of its proper divisors (1).

128474719 is an equidigital number, since it uses as much as digits as its factorization.

128474719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 43.

The square root of 128474719 is about 11334.6688967962. The cubic root of 128474719 is about 504.5906809690.

The spelling of 128474719 in words is "one hundred twenty-eight million, four hundred seventy-four thousand, seven hundred nineteen".