1323305 has 16 divisors (see below), whose sum is σ = 1707264. Its totient is φ = 982080.

The previous prime is 1323281. The next prime is 1323307. The reversal of 1323305 is 5033231.

It is not a de Polignac number, because 1323305 - 2¹⁰ = 1322281 is a prime.

It is a super-2 number, since 2×1323305² = 3502272246050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4100 + ... + 4410.

It is an arithmetic number, because the mean of its divisors is an integer number (106704).

2^1323305 is an apocalyptic number.

It is an amenable number.

1323305 is a deficient number, since it is larger than the sum of its proper divisors (383959).

1323305 is a wasteful number, since it uses less digits than its factorization.

1323305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376.

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

The square root of 1323305 is about 1150.3499467553. The cubic root of 1323305 is about 109.7876066936.

Adding to 1323305 its reverse (5033231), we get a palindrome (6356536).

The spelling of 1323305 in words is "one million, three hundred twenty-three thousand, three hundred five".