12146 has 4 divisors (see below), whose sum is σ = 18222. Its totient is φ = 6072.

The previous prime is 12143. The next prime is 12149. The reversal of 12146 is 64121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64121 = 37 ⋅1733.

It is an interprime number because it is at equal distance from previous prime (12143) and next prime (12149).

It can be written as a sum of positive squares in only one way, i.e., 7921 + 4225 = 89^2 + 65^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12146.

It is not an unprimeable number, because it can be changed into a prime (12143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3035 + ... + 3038.

2¹²¹⁴⁶ is an apocalyptic number.

12146 is a deficient number, since it is larger than the sum of its proper divisors (6076).

12146 is an equidigital number, since it uses as much as digits as its factorization.

12146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6075.

The product of its digits is 48, while the sum is 14.

The square root of 12146 is about 110.2088925632. The cubic root of 12146 is about 22.9867598655.

Adding to 12146 its reverse (64121), we get a palindrome (76267).

The spelling of 12146 in words is "twelve thousand, one hundred forty-six".