869011133 has 2 divisors, whose sum is σ = 869011134. Its totient is φ = 869011132.

The previous prime is 869011109. The next prime is 869011141. The reversal of 869011133 is 331110968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 460445764 + 408565369 = 21458^2 + 20213^2 .

It is a cyclic number.

It is not a de Polignac number, because 869011133 - 2²² = 864816829 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 869011133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (869011333) 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, 434505566 + 434505567.

It is an arithmetic number, because the mean of its divisors is an integer number (434505567).

Almost surely, 2^869011133 is an apocalyptic number.

It is an amenable number.

869011133 is a deficient number, since it is larger than the sum of its proper divisors (1).

869011133 is an equidigital number, since it uses as much as digits as its factorization.

869011133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 869011133 is about 29478.9947759417. The cubic root of 869011133 is about 954.2784432921.

The spelling of 869011133 in words is "eight hundred sixty-nine million, eleven thousand, one hundred thirty-three".