850801143 has 4 divisors (see below), whose sum is σ = 1134401528. Its totient is φ = 567200760.

The previous prime is 850801129. The next prime is 850801151. The reversal of 850801143 is 341108058.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 850801143 - 2⁵ = 850801111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 850801143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850801153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141800188 + ... + 141800193.

It is an arithmetic number, because the mean of its divisors is an integer number (283600382).

Almost surely, 2^850801143 is an apocalyptic number.

850801143 is a deficient number, since it is larger than the sum of its proper divisors (283600385).

850801143 is a wasteful number, since it uses less digits than its factorization.

850801143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283600384.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 850801143 is about 29168.4957274111. The cubic root of 850801143 is about 947.5657505257.

The spelling of 850801143 in words is "eight hundred fifty million, eight hundred one thousand, one hundred forty-three".