1323530 has 16 divisors (see below), whose sum is σ = 2565864. Its totient is φ = 488640.

The previous prime is 1323529. The next prime is 1323533. The reversal of 1323530 is 353231.

It can be written as a sum of positive squares in 4 ways, for example, as 889249 + 434281 = 943^2 + 659^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1323499 and 1323508.

It is not an unprimeable number, because it can be changed into a prime (1323533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4961 + ... + 5220.

2^1323530 is an apocalyptic number.

1323530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1323530 is a deficient number, since it is larger than the sum of its proper divisors (1242334).

1323530 is a wasteful number, since it uses less digits than its factorization.

1323530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10201.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 1323530 is about 1150.4477389260. The cubic root of 1323530 is about 109.7938286938.

Adding to 1323530 its reverse (353231), we get a palindrome (1676761).

Subtracting from 1323530 its reverse (353231), we obtain a cube (970299 = 99³).

The spelling of 1323530 in words is "one million, three hundred twenty-three thousand, five hundred thirty".