1322239 has 4 divisors (see below), whose sum is σ = 1330056. Its totient is φ = 1314424.

The previous prime is 1322227. The next prime is 1322257. The reversal of 1322239 is 9322231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1322239 - 2¹¹ = 1320191 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3649 + ... + 3994.

It is an arithmetic number, because the mean of its divisors is an integer number (332514).

2^1322239 is an apocalyptic number.

1322239 is a deficient number, since it is larger than the sum of its proper divisors (7817).

1322239 is an equidigital number, since it uses as much as digits as its factorization.

1322239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7816.

The product of its digits is 648, while the sum is 22.

The square root of 1322239 is about 1149.8865161397. The cubic root of 1322239 is about 109.7581186495.

The spelling of 1322239 in words is "one million, three hundred twenty-two thousand, two hundred thirty-nine".