816113 has 2 divisors, whose sum is σ = 816114. Its totient is φ = 816112.

The previous prime is 816103. The next prime is 816121. The reversal of 816113 is 311618.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 795664 + 20449 = 892^2 + 143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-816113 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (816103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408056 + 408057.

It is an arithmetic number, because the mean of its divisors is an integer number (408057).

2⁸¹⁶¹¹³ is an apocalyptic number.

It is an amenable number.

816113 is a deficient number, since it is larger than the sum of its proper divisors (1).

816113 is an equidigital number, since it uses as much as digits as its factorization.

816113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 20.

The square root of 816113 is about 903.3897276370. The cubic root of 816113 is about 93.4508878741.

It can be divided in two parts, 816 and 113, that added together give a palindrome (929).

The spelling of 816113 in words is "eight hundred sixteen thousand, one hundred thirteen".