1420073 has 2 divisors, whose sum is σ = 1420074. Its totient is φ = 1420072.

The previous prime is 1420063. The next prime is 1420091. The reversal of 1420073 is 3700241.

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., 946729 + 473344 = 973^2 + 688^2 .

It is an emirp because it is prime and its reverse (3700241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1420073 - 2⁴ = 1420057 is a prime.

It is not a weakly prime, because it can be changed into another prime (1420063) 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, 710036 + 710037.

It is an arithmetic number, because the mean of its divisors is an integer number (710037).

2^1420073 is an apocalyptic number.

It is an amenable number.

1420073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420073 is an equidigital number, since it uses as much as digits as its factorization.

1420073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 1420073 is about 1191.6681585072. The cubic root of 1420073 is about 112.4010125160.

Adding to 1420073 its product of nonzero digits (168), we get a palindrome (1420241).

The spelling of 1420073 in words is "one million, four hundred twenty thousand, seventy-three".