1322143 has 2 divisors, whose sum is σ = 1322144. Its totient is φ = 1322142.

The previous prime is 1322137. The next prime is 1322147. The reversal of 1322143 is 3412231.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322143 is a prime.

It is a super-2 number, since 2×1322143² = 3496124224898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322147) 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, 661071 + 661072.

It is an arithmetic number, because the mean of its divisors is an integer number (661072).

2^1322143 is an apocalyptic number.

1322143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322143 is an equidigital number, since it uses as much as digits as its factorization.

1322143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 16.

The square root of 1322143 is about 1149.8447721323. The cubic root of 1322143 is about 109.7554622880.

Adding to 1322143 its reverse (3412231), we get a palindrome (4734374).

The spelling of 1322143 in words is "one million, three hundred twenty-two thousand, one hundred forty-three".