856195152 has 20 divisors (see below), whose sum is σ = 2211837600. Its totient is φ = 285398368.

The previous prime is 856195147. The next prime is 856195163. The reversal of 856195152 is 251591658.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8918652 + ... + 8918747.

It is an arithmetic number, because the mean of its divisors is an integer number (110591880).

Almost surely, 2^856195152 is an apocalyptic number.

It is an amenable number.

856195152 is an abundant number, since it is smaller than the sum of its proper divisors (1355642448).

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

856195152 is a wasteful number, since it uses less digits than its factorization.

856195152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17837410 (or 17837404 counting only the distinct ones).

The product of its digits is 108000, while the sum is 42.

The square root of 856195152 is about 29260.8125656141. The cubic root of 856195152 is about 949.5640296890.

The spelling of 856195152 in words is "eight hundred fifty-six million, one hundred ninety-five thousand, one hundred fifty-two".