1044120225 has 24 divisors (see below), whose sum is σ = 1754586112. Its totient is φ = 547732800.

The previous prime is 1044120223. The next prime is 1044120247. The reversal of 1044120225 is 5220214401.

It is not a de Polignac number, because 1044120225 - 2¹ = 1044120223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1044120223) 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 23 ways as a sum of consecutive naturals, for example, 109537 + ... + 118686.

Almost surely, 2^1044120225 is an apocalyptic number.

1044120225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1044120225 is a deficient number, since it is larger than the sum of its proper divisors (710465887).

1044120225 is a wasteful number, since it uses less digits than its factorization.

1044120225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228297 (or 228292 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1044120225 is about 32312.8492244184. The cubic root of 1044120225 is about 1014.4956038513.

Adding to 1044120225 its reverse (5220214401), we get a palindrome (6264334626).

The spelling of 1044120225 in words is "one billion, forty-four million, one hundred twenty thousand, two hundred twenty-five".