12450 has 24 divisors (see below), whose sum is σ = 31248. Its totient is φ = 3280.

The previous prime is 12437. The next prime is 12451. The reversal of 12450 is 5421.

12450 is nontrivially palindromic in base 14.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (12451) by changing a digit.

12450 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109 + ... + 191.

It is an arithmetic number, because the mean of its divisors is an integer number (1302).

2¹²⁴⁵⁰ is an apocalyptic number.

12450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12450 is the 60-th nonagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15624).

12450 is an abundant number, since it is smaller than the sum of its proper divisors (18798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12450 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 7 representation: 12450 = (51204)₇.

12450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 12450 is about 111.5795680221. The cubic root of 12450 is about 23.1769588920.

Adding to 12450 its reverse (5421), we get a palindrome (17871).

The spelling of 12450 in words is "twelve thousand, four hundred fifty".