856101538 has 16 divisors (see below), whose sum is σ = 1418808960. Its totient is φ = 385354816.

The previous prime is 856101529. The next prime is 856101551. The reversal of 856101538 is 835101658.

It is a junction number, because it is equal to n+sod(n) for n = 856101497 and 856101506.

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, 546598 + ... + 548161.

It is an arithmetic number, because the mean of its divisors is an integer number (88675560).

Almost surely, 2^856101538 is an apocalyptic number.

856101538 is a deficient number, since it is larger than the sum of its proper divisors (562707422).

856101538 is a wasteful number, since it uses less digits than its factorization.

856101538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094801.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 856101538 is about 29259.2128738967. The cubic root of 856101538 is about 949.5294208631.

The spelling of 856101538 in words is "eight hundred fifty-six million, one hundred one thousand, five hundred thirty-eight".