850136218 has 16 divisors (see below), whose sum is σ = 1344071880. Its totient is φ = 402665536.

The previous prime is 850136213. The next prime is 850136233. The reversal of 850136218 is 812631058.

It can be written as a sum of positive squares in 4 ways, for example, as 818360449 + 31775769 = 28607^2 + 5637^2 .

It is not an unprimeable number, because it can be changed into a prime (850136213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135205 + ... + 141352.

Almost surely, 2^850136218 is an apocalyptic number.

850136218 is a deficient number, since it is larger than the sum of its proper divisors (493935662).

850136218 is a wasteful number, since it uses less digits than its factorization.

850136218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276641.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 850136218 is about 29157.0955000665. The cubic root of 850136218 is about 947.3188364379.

The spelling of 850136218 in words is "eight hundred fifty million, one hundred thirty-six thousand, two hundred eighteen".