320144413 has 2 divisors, whose sum is σ = 320144414. Its totient is φ = 320144412.

The previous prime is 320144393. The next prime is 320144431. The reversal of 320144413 is 314441023.

Together with next prime (320144431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164942649 + 155201764 = 12843^2 + 12458^2 .

It is a cyclic number.

It is not a de Polignac number, because 320144413 - 2¹³ = 320136221 is a prime.

It is a super-2 number, since 2×320144413² = 204984890350229138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320144453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160072206 + 160072207.

It is an arithmetic number, because the mean of its divisors is an integer number (160072207).

Almost surely, 2^320144413 is an apocalyptic number.

It is an amenable number.

320144413 is a deficient number, since it is larger than the sum of its proper divisors (1).

320144413 is an equidigital number, since it uses as much as digits as its factorization.

320144413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 320144413 is about 17892.5798307567. The cubic root of 320144413 is about 684.0932560115.

Adding to 320144413 its reverse (314441023), we get a palindrome (634585436).

The spelling of 320144413 in words is "three hundred twenty million, one hundred forty-four thousand, four hundred thirteen".