1225041445 has 16 divisors (see below), whose sum is σ = 1480384512. Its totient is φ = 973163520.

The previous prime is 1225041443. The next prime is 1225041449. The reversal of 1225041445 is 5441405221.

It is not a de Polignac number, because 1225041445 - 2¹ = 1225041443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225041443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 832060 + ... + 833530.

It is an arithmetic number, because the mean of its divisors is an integer number (92524032).

Almost surely, 2^1225041445 is an apocalyptic number.

It is an amenable number.

1225041445 is a deficient number, since it is larger than the sum of its proper divisors (255343067).

1225041445 is a wasteful number, since it uses less digits than its factorization.

1225041445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2532.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 1225041445 is about 35000.5920664208. The cubic root of 1225041445 is about 1069.9995472674. Note that the first 3 decimals are identical.

Adding to 1225041445 its reverse (5441405221), we get a palindrome (6666446666).

The spelling of 1225041445 in words is "one billion, two hundred twenty-five million, forty-one thousand, four hundred forty-five".