128602219 has 2 divisors, whose sum is σ = 128602220. Its totient is φ = 128602218.

The previous prime is 128602193. The next prime is 128602247. The reversal of 128602219 is 912206821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128602219 - 2²⁵ = 95047787 is a prime.

It is a super-2 number, since 2×128602219² = 33077061463447922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (128602289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64301109 + 64301110.

It is an arithmetic number, because the mean of its divisors is an integer number (64301110).

Almost surely, 2^128602219 is an apocalyptic number.

128602219 is a deficient number, since it is larger than the sum of its proper divisors (1).

128602219 is an equidigital number, since it uses as much as digits as its factorization.

128602219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 128602219 is about 11340.2918392782. The cubic root of 128602219 is about 504.7575465896.

It can be divided in two parts, 128602 and 219, that added together give a palindrome (128821).

The spelling of 128602219 in words is "one hundred twenty-eight million, six hundred two thousand, two hundred nineteen".