856156 has 12 divisors (see below), whose sum is σ = 1712368. Its totient is φ = 366912.

The previous prime is 856153. The next prime is 856169. The reversal of 856156 is 651658.

856156 is an admirable number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856153) 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, 15261 + ... + 15316.

2⁸⁵⁶¹⁵⁶ is an apocalyptic number.

It is an amenable number.

856156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

856156 is a wasteful number, since it uses less digits than its factorization.

856156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30588 (or 30586 counting only the distinct ones).

The product of its digits is 7200, while the sum is 31.

The square root of 856156 is about 925.2869825087. The cubic root of 856156 is about 94.9549555614.

It can be divided in two parts, 85 and 6156, that added together give a square (6241 = 79²).

The spelling of 856156 in words is "eight hundred fifty-six thousand, one hundred fifty-six".