disable keyboard on mobile on input

[zerros]

Hello,

Forgive me for my bad english.

I'm using the input number component on mobile devices and I'd like to disable the keyboard opening when the user taps on - or +.
I've trie preventDefault and stopPropagation, but neither of them works:

<p-inputNumber [ngModel]="item.quantity" size="4" [showButtons]="true"
buttonLayout="horizontal" inputId="qt-{{item.id}}" spinnerMode="horizontal" [step]="1"
decrementButtonClass="p-button-danger" incrementButtonClass="p-button-success"
incrementButtonIcon="pi pi-plus" decrementButtonIcon="pi pi-minus" mode="decimal" min="0"
(onInput)="updateItem({ id: item.id, quantity: $event.value })">

Any idea please ??