1322865601 has 2 divisors, whose sum is σ = 1322865602. Its totient is φ = 1322865600.

The previous prime is 1322865587. The next prime is 1322865611. The reversal of 1322865601 is 1065682231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1209996225 + 112869376 = 34785^2 + 10624^2 .

It is an emirp because it is prime and its reverse (1065682231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1322865601 - 2⁵ = 1322865569 is a prime.

It is not a weakly prime, because it can be changed into another prime (1322865611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661432800 + 661432801.

It is an arithmetic number, because the mean of its divisors is an integer number (661432801).

Almost surely, 2^1322865601 is an apocalyptic number.

It is an amenable number.

1322865601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322865601 is an equidigital number, since it uses as much as digits as its factorization.

1322865601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 1322865601 is about 36371.2194049086. The cubic root of 1322865601 is about 1097.7545381254.

The spelling of 1322865601 in words is "one billion, three hundred twenty-two million, eight hundred sixty-five thousand, six hundred one".