856136 has 16 divisors (see below), whose sum is σ = 1622400. Its totient is φ = 423504.

The previous prime is 856133. The next prime is 856139. The reversal of 856136 is 631658.

It is an interprime number because it is at equal distance from previous prime (856133) and next prime (856139).

It is a junction number, because it is equal to n+sod(n) for n = 856099 and 856108.

It is not an unprimeable number, because it can be changed into a prime (856133) 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, 305 + ... + 1343.

It is an arithmetic number, because the mean of its divisors is an integer number (101400).

2⁸⁵⁶¹³⁶ is an apocalyptic number.

It is an amenable number.

856136 is a deficient number, since it is larger than the sum of its proper divisors (766264).

856136 is a wasteful number, since it uses less digits than its factorization.

856136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148 (or 1144 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 856136 is about 925.2761749878. The cubic root of 856136 is about 94.9542161659.

The spelling of 856136 in words is "eight hundred fifty-six thousand, one hundred thirty-six".