805061 has 2 divisors, whose sum is σ = 805062. Its totient is φ = 805060.

The previous prime is 805037. The next prime is 805067. The reversal of 805061 is 160508.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 776161 + 28900 = 881^2 + 170^2 .

It is a cyclic number.

It is not a de Polignac number, because 805061 - 2⁶ = 804997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p₆₄₃₂₅ and since 805061 and 64325 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 805061.

It is not a weakly prime, because it can be changed into another prime (805067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402530 + 402531.

It is an arithmetic number, because the mean of its divisors is an integer number (402531).

2⁸⁰⁵⁰⁶¹ is an apocalyptic number.

It is an amenable number.

805061 is a deficient number, since it is larger than the sum of its proper divisors (1).

805061 is an equidigital number, since it uses as much as digits as its factorization.

805061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 805061 is about 897.2519155733. The cubic root of 805061 is about 93.0271243193.

Adding to 805061 its reverse (160508), we get a palindrome (965569).

The spelling of 805061 in words is "eight hundred five thousand, sixty-one".