1420394603 has 2 divisors, whose sum is σ = 1420394604. Its totient is φ = 1420394602.

The previous prime is 1420394593. The next prime is 1420394663. The reversal of 1420394603 is 3064930241.

It is a weak prime.

It is an emirp because it is prime and its reverse (3064930241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1420394603 - 2¹⁶ = 1420329067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1420394603.

It is not a weakly prime, because it can be changed into another prime (1420394663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710197301 + 710197302.

It is an arithmetic number, because the mean of its divisors is an integer number (710197302).

Almost surely, 2^1420394603 is an apocalyptic number.

1420394603 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420394603 is an equidigital number, since it uses as much as digits as its factorization.

1420394603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 1420394603 is about 37688.1228373078. The cubic root of 1420394603 is about 1124.0949700343.

The spelling of 1420394603 in words is "one billion, four hundred twenty million, three hundred ninety-four thousand, six hundred three".