1443145225 has 24 divisors (see below), whose sum is σ = 1841821848. Its totient is φ = 1120896000.

The previous prime is 1443145213. The next prime is 1443145229. The reversal of 1443145225 is 5225413441.

It can be written as a sum of positive squares in 12 ways, for example, as 386830224 + 1056315001 = 19668^2 + 32501^2 .

It is not a de Polignac number, because 1443145225 - 2⁹ = 1443144713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1443145229) 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 23 ways as a sum of consecutive naturals, for example, 513825 + ... + 516625.

It is an arithmetic number, because the mean of its divisors is an integer number (76742577).

Almost surely, 2^1443145225 is an apocalyptic number.

It is an amenable number.

1443145225 is a deficient number, since it is larger than the sum of its proper divisors (398676623).

1443145225 is a wasteful number, since it uses less digits than its factorization.

1443145225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405 (or 3400 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 1443145225 is about 37988.7512956138. The cubic root of 1443145225 is about 1130.0647951463.

Adding to 1443145225 its reverse (5225413441), we get a palindrome (6668558666).

The spelling of 1443145225 in words is "one billion, four hundred forty-three million, one hundred forty-five thousand, two hundred twenty-five".