12150225 has 18 divisors (see below), whose sum is σ = 21762806. Its totient is φ = 6480000.

The previous prime is 12150221. The next prime is 12150239. The reversal of 12150225 is 52205121.

It can be written as a sum of positive squares in 3 ways, for example, as 123201 + 12027024 = 351^2 + 3468^2 .

It is not a de Polignac number, because 12150225 - 2² = 12150221 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12150198 and 12150207.

It is not an unprimeable number, because it can be changed into a prime (12150221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 26776 + ... + 27225.

Almost surely, 2^12150225 is an apocalyptic number.

12150225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12150225 is a deficient number, since it is larger than the sum of its proper divisors (9612581).

12150225 is a wasteful number, since it uses less digits than its factorization.

12150225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54017 (or 54009 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 12150225 is about 3485.7172862985. The cubic root of 12150225 is about 229.8942488008.

Adding to 12150225 its reverse (52205121), we get a palindrome (64355346).

The spelling of 12150225 in words is "twelve million, one hundred fifty thousand, two hundred twenty-five".