2065801 has 2 divisors, whose sum is σ = 2065802. Its totient is φ = 2065800.

The previous prime is 2065799. The next prime is 2065807. The reversal of 2065801 is 1085602.

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., 2027776 + 38025 = 1424^2 + 195^2 .

It is a cyclic number.

It is not a de Polignac number, because 2065801 - 2¹ = 2065799 is a prime.

Together with 2065799, it forms a pair of twin primes.

2065801 is a lucky number.

It is equal to p₁₅₃₄₈₁ and since 2065801 and 153481 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2065807) 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, 1032900 + 1032901.

It is an arithmetic number, because the mean of its divisors is an integer number (1032901).

2^2065801 is an apocalyptic number.

It is an amenable number.

2065801 is a deficient number, since it is larger than the sum of its proper divisors (1).

2065801 is an equidigital number, since it uses as much as digits as its factorization.

2065801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 2065801 is about 1437.2894628432. The cubic root of 2065801 is about 127.3589571950.

The spelling of 2065801 in words is "two million, sixty-five thousand, eight hundred one".