1420321297 has 2 divisors, whose sum is σ = 1420321298. Its totient is φ = 1420321296.

The previous prime is 1420321289. The next prime is 1420321319. The reversal of 1420321297 is 7921230241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1190526016 + 229795281 = 34504^2 + 15159^2 .

It is an emirp because it is prime and its reverse (7921230241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1420321297 - 2³ = 1420321289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1420321207) 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, 710160648 + 710160649.

It is an arithmetic number, because the mean of its divisors is an integer number (710160649).

Almost surely, 2^1420321297 is an apocalyptic number.

It is an amenable number.

1420321297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420321297 is an equidigital number, since it uses as much as digits as its factorization.

1420321297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1420321297 is about 37687.1502902515. The cubic root of 1420321297 is about 1124.0756316703.

The spelling of 1420321297 in words is "one billion, four hundred twenty million, three hundred twenty-one thousand, two hundred ninety-seven".