1322401009 has 2 divisors, whose sum is σ = 1322401010. Its totient is φ = 1322401008.

The previous prime is 1322401001. The next prime is 1322401019. The reversal of 1322401009 is 9001042231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 853808400 + 468592609 = 29220^2 + 21647^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322401009 - 2³ = 1322401001 is a prime.

It is not a weakly prime, because it can be changed into another prime (1322401001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661200504 + 661200505.

It is an arithmetic number, because the mean of its divisors is an integer number (661200505).

Almost surely, 2^1322401009 is an apocalyptic number.

It is an amenable number.

1322401009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322401009 is an equidigital number, since it uses as much as digits as its factorization.

1322401009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1322401009 is about 36364.8320359107. The cubic root of 1322401009 is about 1097.6260121706.

The spelling of 1322401009 in words is "one billion, three hundred twenty-two million, four hundred one thousand, nine".