12132500 has 60 divisors (see below), whose sum is σ = 27816096. Its totient is φ = 4620000.

The previous prime is 12132499. The next prime is 12132529. The reversal of 12132500 is 523121.

It is a happy number.

12132500 is nontrivially palindromic in base 7.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 57395 + ... + 57605.

Almost surely, 2^12132500 is an apocalyptic number.

12132500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12132500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13908048).

12132500 is an abundant number, since it is smaller than the sum of its proper divisors (15683596).

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

12132500 is a wasteful number, since it uses less digits than its factorization.

12132500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 12132500 is about 3483.1738400488. The cubic root of 12132500 is about 229.7824028975.

Adding to 12132500 its reverse (523121), we get a palindrome (12655621).

The spelling of 12132500 in words is "twelve million, one hundred thirty-two thousand, five hundred".