12051 has 12 divisors (see below), whose sum is σ = 18928. Its totient is φ = 7344.

The previous prime is 12049. The next prime is 12071. The reversal of 12051 is 15021.

It is a happy number.

It is not a de Polignac number, because 12051 - 2¹ = 12049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66 + ... + 168.

2¹²⁰⁵¹ is an apocalyptic number.

12051 is a deficient number, since it is larger than the sum of its proper divisors (6877).

12051 is a wasteful number, since it uses less digits than its factorization.

12051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 12051 is about 109.7770467812. Note that the first 3 decimals coincide. The cubic root of 12051 is about 22.9266725819.

Adding to 12051 its reverse (15021), we get a palindrome (27072).

It can be divided in two parts, 120 and 51, that added together give a palindrome (171).

The spelling of 12051 in words is "twelve thousand, fifty-one".