850155 has 24 divisors (see below), whose sum is σ = 1444752. Its totient is φ = 426816.

The previous prime is 850147. The next prime is 850177. The reversal of 850155 is 551058.

It is not a de Polignac number, because 850155 - 2³ = 850147 is a prime.

850155 is a lucky number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 5337 + ... + 5493.

It is an arithmetic number, because the mean of its divisors is an integer number (60198).

2⁸⁵⁰¹⁵⁵ is an apocalyptic number.

850155 is a deficient number, since it is larger than the sum of its proper divisors (594597).

850155 is a wasteful number, since it uses less digits than its factorization.

850155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 850155 is about 922.0385024499. The cubic root of 850155 is about 94.7325812736.

The spelling of 850155 in words is "eight hundred fifty thousand, one hundred fifty-five".