12346 has 4 divisors (see below), whose sum is σ = 18522. Its totient is φ = 6172.

The previous prime is 12343. The next prime is 12347. The reversal of 12346 is 64321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64321 = 131 ⋅491.

It can be written as a sum of positive squares in only one way, i.e., 12321 + 25 = 111^2 + 5^2 .

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (12343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3085 + ... + 3088.

2¹²³⁴⁶ is an apocalyptic number.

12346 is a deficient number, since it is larger than the sum of its proper divisors (6176).

12346 is an equidigital number, since it uses as much as digits as its factorization.

12346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6175.

The product of its digits is 144, while the sum is 16.

The square root of 12346 is about 111.1125555462. The cubic root of 12346 is about 23.1122427810.

Adding to 12346 its reverse (64321), we get a palindrome (76667).

It can be divided in two parts, 123 and 46, that added together give a square (169 = 13²).

The spelling of 12346 in words is "twelve thousand, three hundred forty-six".