1322279473 has 2 divisors, whose sum is σ = 1322279474. Its totient is φ = 1322279472.

The previous prime is 1322279467. The next prime is 1322279489. The reversal of 1322279473 is 3749722231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1203534864 + 118744609 = 34692^2 + 10897^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322279473 is a prime.

It is not a weakly prime, because it can be changed into another prime (1322279443) 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 as a sum of consecutive naturals, namely, 661139736 + 661139737.

It is an arithmetic number, because the mean of its divisors is an integer number (661139737).

Almost surely, 2^1322279473 is an apocalyptic number.

It is an amenable number.

1322279473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322279473 is an equidigital number, since it uses as much as digits as its factorization.

1322279473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 40.

The square root of 1322279473 is about 36363.1609324602. The cubic root of 1322279473 is about 1097.5923851641.

The spelling of 1322279473 in words is "one billion, three hundred twenty-two million, two hundred seventy-nine thousand, four hundred seventy-three".