1420012073 has 2 divisors, whose sum is σ = 1420012074. Its totient is φ = 1420012072.

The previous prime is 1420012067. The next prime is 1420012103. The reversal of 1420012073 is 3702100241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1337511184 + 82500889 = 36572^2 + 9083^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420012073 - 2²² = 1415817769 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1420012043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710006036 + 710006037.

It is an arithmetic number, because the mean of its divisors is an integer number (710006037).

Almost surely, 2^1420012073 is an apocalyptic number.

It is an amenable number.

1420012073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420012073 is an equidigital number, since it uses as much as digits as its factorization.

1420012073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1420012073 is about 37683.0475545702. The cubic root of 1420012073 is about 1123.9940500375.

The spelling of 1420012073 in words is "one billion, four hundred twenty million, twelve thousand, seventy-three".