1323105 has 16 divisors (see below), whose sum is σ = 2419584. Its totient is φ = 604800.

The previous prime is 1323079. The next prime is 1323107. The reversal of 1323105 is 5013231.

It is a happy number.

It is not a de Polignac number, because 1323105 - 2⁵ = 1323073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323107) 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 15 ways as a sum of consecutive naturals, for example, 6196 + ... + 6405.

It is an arithmetic number, because the mean of its divisors is an integer number (151224).

2^1323105 is an apocalyptic number.

1323105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1323105 is a deficient number, since it is larger than the sum of its proper divisors (1096479).

1323105 is a wasteful number, since it uses less digits than its factorization.

1323105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12616.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 1323105 is about 1150.2630134017. The cubic root of 1323105 is about 109.7820754347.

Adding to 1323105 its reverse (5013231), we get a palindrome (6336336).

The spelling of 1323105 in words is "one million, three hundred twenty-three thousand, one hundred five".