1420603 has 2 divisors, whose sum is σ = 1420604. Its totient is φ = 1420602.

The previous prime is 1420583. The next prime is 1420607. The reversal of 1420603 is 3060241.

It is a strong prime.

It is an emirp because it is prime and its reverse (3060241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1420603 - 2⁹ = 1420091 is a prime.

It is a super-2 number, since 2×1420603² = 4036225767218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1420607) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710301 + 710302.

It is an arithmetic number, because the mean of its divisors is an integer number (710302).

2^1420603 is an apocalyptic number.

1420603 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420603 is an equidigital number, since it uses as much as digits as its factorization.

1420603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1420603 is about 1191.8905151061. The cubic root of 1420603 is about 112.4149942214.

Adding to 1420603 its reverse (3060241), we get a palindrome (4480844).

The spelling of 1420603 in words is "one million, four hundred twenty thousand, six hundred three".