1200225 has 24 divisors (see below), whose sum is σ = 2138752. Its totient is φ = 590400.

The previous prime is 1200191. The next prime is 1200233. The reversal of 1200225 is 5220021.

It is not a de Polignac number, because 1200225 - 2⁶ = 1200161 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1200225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 360 + ... + 1590.

2^1200225 is an apocalyptic number.

1200225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1200225 is a deficient number, since it is larger than the sum of its proper divisors (938527).

1200225 is a wasteful number, since it uses less digits than its factorization.

1200225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257 (or 1252 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 1200225 is about 1095.5478081763. The cubic root of 1200225 is about 106.2724981193.

Adding to 1200225 its reverse (5220021), we get a palindrome (6420246).

The spelling of 1200225 in words is "one million, two hundred thousand, two hundred twenty-five".