1144225 has 12 divisors (see below), whose sum is σ = 1458364. Its totient is φ = 889920.

The previous prime is 1144223. The next prime is 1144243. The reversal of 1144225 is 5224411.

1144225 = 86² + 87² + ... + 159².

It can be written as a sum of positive squares in 6 ways, for example, as 54289 + 1089936 = 233^2 + 1044^2 .

It is not a de Polignac number, because 1144225 - 2¹ = 1144223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 307 + ... + 1543.

2^1144225 is an apocalyptic number.

It is an amenable number.

1144225 is a deficient number, since it is larger than the sum of its proper divisors (314139).

1144225 is a wasteful number, since it uses less digits than its factorization.

1144225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284 (or 1279 counting only the distinct ones).

The product of its digits is 320, while the sum is 19.

The square root of 1144225 is about 1069.6845329348. The cubic root of 1144225 is about 104.5932868135.

Adding to 1144225 its reverse (5224411), we get a palindrome (6368636).

It can be divided in two parts, 1144 and 225, that added together give a square (1369 = 37²).

The spelling of 1144225 in words is "one million, one hundred forty-four thousand, two hundred twenty-five".