813061 has 2 divisors, whose sum is σ = 813062. Its totient is φ = 813060.

The previous prime is 813049. The next prime is 813083. The reversal of 813061 is 160318.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 690561 + 122500 = 831^2 + 350^2 .

It is a cyclic number.

It is not a de Polignac number, because 813061 - 2¹⁹ = 288773 is a prime.

It is a super-2 number, since 2×813061² = 1322136379442, which contains 22 as substring.

It is a Chen prime.

813061 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (813041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406530 + 406531.

It is an arithmetic number, because the mean of its divisors is an integer number (406531).

2⁸¹³⁰⁶¹ is an apocalyptic number.

It is an amenable number.

813061 is a deficient number, since it is larger than the sum of its proper divisors (1).

813061 is an equidigital number, since it uses as much as digits as its factorization.

813061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 813061 is about 901.6989519790. The cubic root of 813061 is about 93.3342502744.

Adding to 813061 its reverse (160318), we get a palindrome (973379).

The spelling of 813061 in words is "eight hundred thirteen thousand, sixty-one".