2005012073 has 2 divisors, whose sum is σ = 2005012074. Its totient is φ = 2005012072.

The previous prime is 2005012049. The next prime is 2005012109. The reversal of 2005012073 is 3702105002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1889814784 + 115197289 = 43472^2 + 10733^2 .

It is a cyclic number.

It is not a de Polignac number, because 2005012073 - 2¹⁴ = 2004995689 is a prime.

It is not a weakly prime, because it can be changed into another prime (2005012013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002506036 + 1002506037.

It is an arithmetic number, because the mean of its divisors is an integer number (1002506037).

Almost surely, 2^2005012073 is an apocalyptic number.

It is an amenable number.

2005012073 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005012073 is an equidigital number, since it uses as much as digits as its factorization.

2005012073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 2005012073 is about 44777.3611661071. The cubic root of 2005012073 is about 1260.9726413207.

Adding to 2005012073 its reverse (3702105002), we get a palindrome (5707117075).

It can be divided in two parts, 20050 and 12073, that added together give a palindrome (32123).

The spelling of 2005012073 in words is "two billion, five million, twelve thousand, seventy-three".