855156 has 12 divisors (see below), whose sum is σ = 1995392. Its totient is φ = 285048.

The previous prime is 855143. The next prime is 855187. The reversal of 855156 is 651558.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

855156 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35620 + ... + 35643.

2⁸⁵⁵¹⁵⁶ is an apocalyptic number.

It is an amenable number.

855156 is an abundant number, since it is smaller than the sum of its proper divisors (1140236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

855156 is a wasteful number, since it uses less digits than its factorization.

855156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71270 (or 71268 counting only the distinct ones).

The product of its digits is 6000, while the sum is 30.

The square root of 855156 is about 924.7464517369. The cubic root of 855156 is about 94.9179716671.

The spelling of 855156 in words is "eight hundred fifty-five thousand, one hundred fifty-six".