818113 has 2 divisors, whose sum is σ = 818114. Its totient is φ = 818112.

The previous prime is 818101. The next prime is 818123. The reversal of 818113 is 311818.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 815409 + 2704 = 903^2 + 52^2 .

It is a cyclic number.

It is not a de Polignac number, because 818113 - 2¹⁷ = 687041 is a prime.

It is not a weakly prime, because it can be changed into another prime (818123) 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, 409056 + 409057.

It is an arithmetic number, because the mean of its divisors is an integer number (409057).

2⁸¹⁸¹¹³ is an apocalyptic number.

It is an amenable number.

818113 is a deficient number, since it is larger than the sum of its proper divisors (1).

818113 is an equidigital number, since it uses as much as digits as its factorization.

818113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 22.

The square root of 818113 is about 904.4959922520. The cubic root of 818113 is about 93.5271637930.

The spelling of 818113 in words is "eight hundred eighteen thousand, one hundred thirteen".