85140850 has 12 divisors (see below), whose sum is σ = 158362074. Its totient is φ = 34056320.

The previous prime is 85140841. The next prime is 85140851. The reversal of 85140850 is 5804158.

It can be written as a sum of positive squares in 3 ways, for example, as 82428241 + 2712609 = 9079^2 + 1647^2 .

It is not an unprimeable number, because it can be changed into a prime (85140851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 851359 + ... + 851458.

Almost surely, 2^85140850 is an apocalyptic number.

85140850 is a deficient number, since it is larger than the sum of its proper divisors (73221224).

85140850 is a wasteful number, since it uses less digits than its factorization.

85140850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702829 (or 1702824 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 85140850 is about 9227.1799592291. The cubic root of 85140850 is about 439.9256933748.

The spelling of 85140850 in words is "eighty-five million, one hundred forty thousand, eight hundred fifty".