1322849609 has 2 divisors, whose sum is σ = 1322849610. Its totient is φ = 1322849608.

The previous prime is 1322849573. The next prime is 1322849617. The reversal of 1322849609 is 9069482231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1256915209 + 65934400 = 35453^2 + 8120^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322849609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1322849609.

It is not a weakly prime, because it can be changed into another prime (1322849629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661424804 + 661424805.

It is an arithmetic number, because the mean of its divisors is an integer number (661424805).

Almost surely, 2^1322849609 is an apocalyptic number.

It is an amenable number.

1322849609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322849609 is an equidigital number, since it uses as much as digits as its factorization.

1322849609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 1322849609 is about 36370.9995600891. Note that the first 3 decimals coincide. The cubic root of 1322849609 is about 1097.7501145565.

The spelling of 1322849609 in words is "one billion, three hundred twenty-two million, eight hundred forty-nine thousand, six hundred nine".