1323199 has 2 divisors, whose sum is σ = 1323200. Its totient is φ = 1323198.

The previous prime is 1323197. The next prime is 1323221. The reversal of 1323199 is 9913231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1323199 - 2¹ = 1323197 is a prime.

Together with 1323197, it forms a pair of twin primes.

1323199 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661599 + 661600.

It is an arithmetic number, because the mean of its divisors is an integer number (661600).

2^1323199 is an apocalyptic number.

1323199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323199 is an equidigital number, since it uses as much as digits as its factorization.

1323199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1458, while the sum is 28.

The square root of 1323199 is about 1150.3038728962. The cubic root of 1323199 is about 109.7846751958.

The spelling of 1323199 in words is "one million, three hundred twenty-three thousand, one hundred ninety-nine".