1320466493 has 2 divisors, whose sum is σ = 1320466494. Its totient is φ = 1320466492.

The previous prime is 1320466487. The next prime is 1320466549. The reversal of 1320466493 is 3946640231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 806673604 + 513792889 = 28402^2 + 22667^2 .

It is an emirp because it is prime and its reverse (3946640231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1320466493 - 2⁶ = 1320466429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320466453) 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, 660233246 + 660233247.

It is an arithmetic number, because the mean of its divisors is an integer number (660233247).

Almost surely, 2^1320466493 is an apocalyptic number.

It is an amenable number.

1320466493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320466493 is an equidigital number, since it uses as much as digits as its factorization.

1320466493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 1320466493 is about 36338.2235806870. The cubic root of 1320466493 is about 1097.0905186943.

It can be divided in two parts, 13204 and 66493, that added together give a palindrome (79697).

The spelling of 1320466493 in words is "one billion, three hundred twenty million, four hundred sixty-six thousand, four hundred ninety-three".