810113329 has 2 divisors, whose sum is σ = 810113330. Its totient is φ = 810113328.

The previous prime is 810113309. The next prime is 810113351. The reversal of 810113329 is 923311018.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 422220304 + 387893025 = 20548^2 + 19695^2 .

It is a cyclic number.

It is not a de Polignac number, because 810113329 - 2⁷ = 810113201 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 810113297 and 810113306.

It is not a weakly prime, because it can be changed into another prime (810113309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405056664 + 405056665.

It is an arithmetic number, because the mean of its divisors is an integer number (405056665).

Almost surely, 2^810113329 is an apocalyptic number.

It is an amenable number.

810113329 is a deficient number, since it is larger than the sum of its proper divisors (1).

810113329 is an equidigital number, since it uses as much as digits as its factorization.

810113329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 810113329 is about 28462.4898594624. The cubic root of 810113329 is about 932.2132237776.

The spelling of 810113329 in words is "eight hundred ten million, one hundred thirteen thousand, three hundred twenty-nine".