856183156 has 24 divisors (see below), whose sum is σ = 1536348744. Its totient is φ = 417246720.

The previous prime is 856183117. The next prime is 856183169. The reversal of 856183156 is 651381658.

It can be written as a sum of positive squares in 4 ways, for example, as 90554256 + 765628900 = 9516^2 + 27670^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236496 + ... + 240088.

It is an arithmetic number, because the mean of its divisors is an integer number (64014531).

Almost surely, 2^856183156 is an apocalyptic number.

It is an amenable number.

856183156 is a deficient number, since it is larger than the sum of its proper divisors (680165588).

856183156 is a wasteful number, since it uses less digits than its factorization.

856183156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5091 (or 5089 counting only the distinct ones).

The product of its digits is 172800, while the sum is 43.

The square root of 856183156 is about 29260.6075808415. The cubic root of 856183156 is about 949.5595949433.

The spelling of 856183156 in words is "eight hundred fifty-six million, one hundred eighty-three thousand, one hundred fifty-six".