868116133 has 2 divisors, whose sum is σ = 868116134. Its totient is φ = 868116132.

The previous prime is 868116103. The next prime is 868116149. The reversal of 868116133 is 331611868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 866595844 + 1520289 = 29438^2 + 1233^2 .

It is a cyclic number.

It is not a de Polignac number, because 868116133 - 2²⁵ = 834561701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 868116092 and 868116101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868116103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434058066 + 434058067.

It is an arithmetic number, because the mean of its divisors is an integer number (434058067).

Almost surely, 2^868116133 is an apocalyptic number.

It is an amenable number.

868116133 is a deficient number, since it is larger than the sum of its proper divisors (1).

868116133 is an equidigital number, since it uses as much as digits as its factorization.

868116133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 868116133 is about 29463.8105648268. The cubic root of 868116133 is about 953.9507249812.

The spelling of 868116133 in words is "eight hundred sixty-eight million, one hundred sixteen thousand, one hundred thirty-three".