856134 has 12 divisors (see below), whose sum is σ = 1854996. Its totient is φ = 285372.

The previous prime is 856133. The next prime is 856139. The reversal of 856134 is 431658.

It is a junction number, because it is equal to n+sod(n) for n = 856098 and 856107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23764 + ... + 23799.

It is an arithmetic number, because the mean of its divisors is an integer number (154583).

2⁸⁵⁶¹³⁴ is an apocalyptic number.

856134 is an abundant number, since it is smaller than the sum of its proper divisors (998862).

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

856134 is a wasteful number, since it uses less digits than its factorization.

856134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47571 (or 47568 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 856134 is about 925.2750942287. The cubic root of 856134 is about 94.9541422257.

It can be divided in two parts, 856 and 134, that added together give a triangular number (990 = T₄₄).

The spelling of 856134 in words is "eight hundred fifty-six thousand, one hundred thirty-four".