850743133 has 2 divisors, whose sum is σ = 850743134. Its totient is φ = 850743132.

The previous prime is 850743041. The next prime is 850743139. The reversal of 850743133 is 331347058.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 620856889 + 229886244 = 24917^2 + 15162^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-850743133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (850743139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425371566 + 425371567.

It is an arithmetic number, because the mean of its divisors is an integer number (425371567).

Almost surely, 2^850743133 is an apocalyptic number.

It is an amenable number.

850743133 is a deficient number, since it is larger than the sum of its proper divisors (1).

850743133 is an equidigital number, since it uses as much as digits as its factorization.

850743133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 850743133 is about 29167.5013156767. The cubic root of 850743133 is about 947.5442141424.

The spelling of 850743133 in words is "eight hundred fifty million, seven hundred forty-three thousand, one hundred thirty-three".