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128000219 is a prime number
BaseRepresentation
bin1111010000100…
…10000011011011
322220212002021212
413220102003123
5230232001334
620411253335
73112661324
oct750220333
9286762255
10128000219
1166286506
1236a4a24b
1320698499
1412ddd44b
15b385ece
hex7a120db

128000219 has 2 divisors, whose sum is σ = 128000220. Its totient is φ = 128000218.

The previous prime is 128000203. The next prime is 128000227. The reversal of 128000219 is 912000821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128000219 - 24 = 128000203 is a prime.

It is a super-2 number, since 2×1280002192 = 32768112128095922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 128000194 and 128000203.

It is not a weakly prime, because it can be changed into another prime (128005219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64000109 + 64000110.

It is an arithmetic number, because the mean of its divisors is an integer number (64000110).

Almost surely, 2128000219 is an apocalyptic number.

128000219 is a deficient number, since it is larger than the sum of its proper divisors (1).

128000219 is an equidigital number, since it uses as much as digits as its factorization.

128000219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 128000219 is about 11313.7181775047. The cubic root of 128000219 is about 503.9687073773.

The spelling of 128000219 in words is "one hundred twenty-eight million, two hundred nineteen", and thus it is an aban number.