12249225 has 60 divisors (see below), whose sum is σ = 23766336. Its totient is φ = 6225120.

The previous prime is 12249203. The next prime is 12249229. The reversal of 12249225 is 52294221.

It is a happy number.

12249225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12249225 - 2¹¹ = 12247177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12249229) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 46444 + ... + 46706.

Almost surely, 2^12249225 is an apocalyptic number.

12249225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12249225 is a deficient number, since it is larger than the sum of its proper divisors (11517111).

12249225 is a wasteful number, since it uses less digits than its factorization.

12249225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 294 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 12249225 is about 3499.8892839631. The cubic root of 12249225 is about 230.5169531560.

The spelling of 12249225 in words is "twelve million, two hundred forty-nine thousand, two hundred twenty-five".