2001073 has 2 divisors, whose sum is σ = 2001074. Its totient is φ = 2001072.

The previous prime is 2001067. The next prime is 2001079. The reversal of 2001073 is 3701002.

It is a balanced prime because it is at equal distance from previous prime (2001067) and next prime (2001079).

It can be written as a sum of positive squares in only one way, i.e., 1926544 + 74529 = 1388^2 + 273^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001073 is a prime.

2001073 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2001079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000536 + 1000537.

It is an arithmetic number, because the mean of its divisors is an integer number (1000537).

2^2001073 is an apocalyptic number.

It is an amenable number.

2001073 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001073 is an equidigital number, since it uses as much as digits as its factorization.

2001073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 2001073 is about 1414.5928742928. The cubic root of 2001073 is about 126.0146325494.

Adding to 2001073 its reverse (3701002), we get a palindrome (5702075).

The spelling of 2001073 in words is "two million, one thousand, seventy-three".