322040513 has 2 divisors, whose sum is σ = 322040514. Its totient is φ = 322040512.

The previous prime is 322040507. The next prime is 322040531. The reversal of 322040513 is 315040223.

It is a happy number.

Together with next prime (322040531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236144689 + 85895824 = 15367^2 + 9268^2 .

It is a cyclic number.

It is not a de Polignac number, because 322040513 - 2⁴ = 322040497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (322040413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161020256 + 161020257.

It is an arithmetic number, because the mean of its divisors is an integer number (161020257).

Almost surely, 2^322040513 is an apocalyptic number.

It is an amenable number.

322040513 is a deficient number, since it is larger than the sum of its proper divisors (1).

322040513 is an equidigital number, since it uses as much as digits as its factorization.

322040513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 322040513 is about 17945.4872600328. The cubic root of 322040513 is about 685.4411444359.

Adding to 322040513 its reverse (315040223), we get a palindrome (637080736).

The spelling of 322040513 in words is "three hundred twenty-two million, forty thousand, five hundred thirteen".