| Nom (anglais): | CJK Unified Ideograph-58F9[1] |
| Valeur numérique: | 1[1] |
| Version Unicode: | 1.1 (juin 1993)[2] |
| Bloc: | Idéogrammes unifiés CJC, U+4E00 - U+9FFF[3] |
| Plan: | Plan multilingue de base, U+0000 - U+FFFF[3] |
| Écriture: | idéogrammes han (sinogrammes) (Hani) [4] |
| Catégorie: | Lettre, autre (Lo) [1] |
| Classe bidirectionelle: | Gauche-à-droite (L) [1] |
| Classe de liaison: | Non réordonné (0) [1] |
| Caractère miroir: | Non [1] |
| Entité HTML: |
|
| Encodage UTF-8: | 0xE5 0xA3 0xB9 |
| Encodage UTF-16: | 0x58F9 |
| Encodage UTF-32: | 0x000058F9 |
| kAccountingNumeric | 1 |
| kCowles | 5134 |
| kDaeJaweon | 0483.190 |
| kFennIndex | 216.01 217.06 220.06 |
| kGSR | 0395a |
| kHanYu | 10467.100 |
| kIRGDaeJaweon | 0483.190 |
| kIRGDaiKanwaZiten | 05661 |
| kIRGHanyuDaZidian | 10467.100 |
| kIRGKangXi | 0243.100 |
| kKangXi | 0243.100 |
| kKarlgren | 201 |
| kLau | 3341 |
| kMatthews | 3016 |
| kMeyerWempe | 3837 |
| kMorohashi | 05661 |
| kNelson | 1100 |
| kSBGY | 468.42 |
| kCantonese | jat1 jik1 |
| kDefinition | number one |
| kHangul | 일:0N |
| kHanyuPinyin | 10467.100:yī,yīn |
| kJapaneseKun | HITOTSU |
| kJapaneseOn | ICHI ITSU |
| kKorean | IL |
| kMandarin | yī |
| kTang | qit |
| kVietnamese | nhất |
| kXHC1983 | 1359.010:yī |
| kSemanticVariant | U+4E00 kLau,kMatthews,kMeyerWempe U+5F0C<kLau,kMatthews,kMeyerWempe |
| kSpecializedSemanticVariant | U+4E00 |