12045525 has 48 divisors (see below), whose sum is σ = 21427200. Its totient is φ = 5952960.

The previous prime is 12045521. The next prime is 12045589. The reversal of 12045525 is 52554021.

It is a happy number.

It is not a de Polignac number, because 12045525 - 2² = 12045521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12045495 and 12045504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12045521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 112522 + ... + 112628.

It is an arithmetic number, because the mean of its divisors is an integer number (446400).

Almost surely, 2^12045525 is an apocalyptic number.

12045525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12045525 is a deficient number, since it is larger than the sum of its proper divisors (9381675).

12045525 is a wasteful number, since it uses less digits than its factorization.

12045525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 12045525 is about 3470.6663625304. Note that the first 3 decimals coincide. The cubic root of 12045525 is about 229.2320004721.

Adding to 12045525 its reverse (52554021), we get a palindrome (64599546).

The spelling of 12045525 in words is "twelve million, forty-five thousand, five hundred twenty-five".