12180525 has 24 divisors (see below), whose sum is σ = 23016384. Its totient is φ = 5568000.

The previous prime is 12180503. The next prime is 12180527. The reversal of 12180525 is 52508121.

It is not a de Polignac number, because 12180525 - 2⁶ = 12180461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12180495 and 12180504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12180527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11076 + ... + 12125.

It is an arithmetic number, because the mean of its divisors is an integer number (959016).

Almost surely, 2^12180525 is an apocalyptic number.

12180525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12180525 is a deficient number, since it is larger than the sum of its proper divisors (10835859).

12180525 is a wasteful number, since it uses less digits than its factorization.

12180525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23221 (or 23216 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 12180525 is about 3490.0608877210. The cubic root of 12180525 is about 230.0851921334.

Adding to 12180525 its reverse (52508121), we get a palindrome (64688646).

The spelling of 12180525 in words is "twelve million, one hundred eighty thousand, five hundred twenty-five".