2071801 has 2 divisors, whose sum is σ = 2071802. Its totient is φ = 2071800.

The previous prime is 2071799. The next prime is 2071819. The reversal of 2071801 is 1081702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1687401 + 384400 = 1299^2 + 620^2 .

It is a cyclic number.

It is not a de Polignac number, because 2071801 - 2¹ = 2071799 is a prime.

Together with 2071799, it forms a pair of twin primes.

2071801 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2072801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1035900 + 1035901.

It is an arithmetic number, because the mean of its divisors is an integer number (1035901).

2^2071801 is an apocalyptic number.

It is an amenable number.

2071801 is a deficient number, since it is larger than the sum of its proper divisors (1).

2071801 is an equidigital number, since it uses as much as digits as its factorization.

2071801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 2071801 is about 1439.3752116804. The cubic root of 2071801 is about 127.4821402640.

Subtracting from 2071801 its reverse (1081702), we obtain a palindrome (990099).

The spelling of 2071801 in words is "two million, seventy-one thousand, eight hundred one".