This character is a Other Letter and is mainly used in the Lepcha script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written from left to right. When changing direction it is not mirrored. The word that U+1C4E forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
The Lepcha script, or Róng script, is an abugida used by the Lepcha people to write the Lepcha language. Unusually for an abugida, syllable-final consonants are written as diacritics.
Representations
System
Representation (click value to copy)
Nº
7246
UTF-8
E1 B1 8E
UTF-16
1C 4E
UTF-32
00 00 1C 4E
URL-Quoted
%E1%B1%8E
HTML hex reference
ᱎ
Wrong windows-1252 Mojibake
ᱎ
Encoding: GB18030 (hex bytes)
81 35 C3 30
RFC 5137
\u'1C4E'
Bash and Zsh inside echo -e
\u1C4E
C and C++
\u1C4E
C#
\u1C4E
CSS
\001C4E
Excel
=UNICHAR(7246)
Go
\u1C4E
JavaScript
\u1C4E
Modern JavaScript since ES6
\u{1c4e}
JSON
\u1C4E
Java
\u1C4E
Lua
\u{1C4E}
Matlab
char(7246)
Perl
"\x{1C4E}"
PHP
\u{1c4e}
PostgreSQL
U&'\1C4E'
PowerShell
`u{1C4E}
Python
\u1C4E
Ruby
\u{1c4e}
Rust
\u{1c4e}
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