1443225 has 24 divisors (see below), whose sum is σ = 2728000. Its totient is φ = 659520.

The previous prime is 1443223. The next prime is 1443257. The reversal of 1443225 is 5223441.

It is not a de Polignac number, because 1443225 - 2¹ = 1443223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1443223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 850 + ... + 1899.

2^1443225 is an apocalyptic number.

1443225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1443225 is a deficient number, since it is larger than the sum of its proper divisors (1284775).

1443225 is a wasteful number, since it uses less digits than its factorization.

1443225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2769 (or 2764 counting only the distinct ones).

The product of its digits is 960, while the sum is 21.

The square root of 1443225 is about 1201.3429984813. The cubic root of 1443225 is about 113.0085617550.

Adding to 1443225 its reverse (5223441), we get a palindrome (6666666).

The spelling of 1443225 in words is "one million, four hundred forty-three thousand, two hundred twenty-five".