819061 has 2 divisors, whose sum is σ = 819062. Its totient is φ = 819060.

The previous prime is 819037. The next prime is 819073. The reversal of 819061 is 160918.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 819025 + 36 = 905^2 + 6^2 .

It is a cyclic number.

It is not a de Polignac number, because 819061 - 2⁵ = 819029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (819001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 409530 + 409531.

It is an arithmetic number, because the mean of its divisors is an integer number (409531).

2⁸¹⁹⁰⁶¹ is an apocalyptic number.

It is an amenable number.

819061 is a deficient number, since it is larger than the sum of its proper divisors (1).

819061 is an equidigital number, since it uses as much as digits as its factorization.

819061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 819061 is about 905.0198892842. The cubic root of 819061 is about 93.5632751559.

Adding to 819061 its reverse (160918), we get a palindrome (979979).

The spelling of 819061 in words is "eight hundred nineteen thousand, sixty-one".