811036133 has 2 divisors, whose sum is σ = 811036134. Its totient is φ = 811036132.

The previous prime is 811036073. The next prime is 811036217. The reversal of 811036133 is 331630118.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 710595649 + 100440484 = 26657^2 + 10022^2 .

It is a cyclic number.

It is not a de Polignac number, because 811036133 - 2⁸ = 811035877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (811032133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405518066 + 405518067.

It is an arithmetic number, because the mean of its divisors is an integer number (405518067).

Almost surely, 2^811036133 is an apocalyptic number.

It is an amenable number.

811036133 is a deficient number, since it is larger than the sum of its proper divisors (1).

811036133 is an equidigital number, since it uses as much as digits as its factorization.

811036133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 811036133 is about 28478.6961253496. The cubic root of 811036133 is about 932.5670523220.

The spelling of 811036133 in words is "eight hundred eleven million, thirty-six thousand, one hundred thirty-three".