1322712449 has 2 divisors, whose sum is σ = 1322712450. Its totient is φ = 1322712448.

The previous prime is 1322712431. The next prime is 1322712481. The reversal of 1322712449 is 9442172231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1040707600 + 282004849 = 32260^2 + 16793^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322712449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1322712499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661356224 + 661356225.

It is an arithmetic number, because the mean of its divisors is an integer number (661356225).

Almost surely, 2^1322712449 is an apocalyptic number.

It is an amenable number.

1322712449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322712449 is an equidigital number, since it uses as much as digits as its factorization.

1322712449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 1322712449 is about 36369.1139430149. The cubic root of 1322712449 is about 1097.7121730780.

The spelling of 1322712449 in words is "one billion, three hundred twenty-two million, seven hundred twelve thousand, four hundred forty-nine".