1323225 has 18 divisors (see below), whose sum is σ = 2370446. Its totient is φ = 705600.

The previous prime is 1323221. The next prime is 1323233. The reversal of 1323225 is 5223231.

It can be written as a sum of positive squares in 3 ways, for example, as 233289 + 1089936 = 483^2 + 1044^2 .

It is not a de Polignac number, because 1323225 - 2² = 1323221 is a prime.

It is a Duffinian number.

1323225 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1323198 and 1323207.

It is not an unprimeable number, because it can be changed into a prime (1323221) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2716 + ... + 3165.

2^1323225 is an apocalyptic number.

1323225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1323225 is a deficient number, since it is larger than the sum of its proper divisors (1047221).

1323225 is a wasteful number, since it uses less digits than its factorization.

1323225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5897 (or 5889 counting only the distinct ones).

The product of its digits is 360, while the sum is 18.

The square root of 1323225 is about 1150.3151742023. The cubic root of 1323225 is about 109.7853942570.

Adding to 1323225 its reverse (5223231), we get a palindrome (6546456).

The spelling of 1323225 in words is "one million, three hundred twenty-three thousand, two hundred twenty-five".