1330225 has 12 divisors (see below), whose sum is σ = 1776796. Its totient is φ = 982080.

The previous prime is 1330223. The next prime is 1330229. The reversal of 1330225 is 5220331.

It can be written as a sum of positive squares in 6 ways, for example, as 183184 + 1147041 = 428^2 + 1071^2 .

It is not a de Polignac number, because 1330225 - 2¹ = 1330223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1330199 and 1330208.

It is not an unprimeable number, because it can be changed into a prime (1330223) 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, 1722 + ... + 2371.

2^1330225 is an apocalyptic number.

It is an amenable number.

1330225 is a deficient number, since it is larger than the sum of its proper divisors (446571).

1330225 is a wasteful number, since it uses less digits than its factorization.

1330225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4116 (or 4111 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 1330225 is about 1153.3538052133. The cubic root of 1330225 is about 109.9786459926.

Adding to 1330225 its reverse (5220331), we get a palindrome (6550556).

The spelling of 1330225 in words is "one million, three hundred thirty thousand, two hundred twenty-five".