856045137 has 16 divisors (see below), whose sum is σ = 1146821760. Its totient is φ = 567990912.

The previous prime is 856045117. The next prime is 856045153. The reversal of 856045137 is 731540658.

It is not a de Polignac number, because 856045137 - 2⁷ = 856045009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 856045095 and 856045104.

It is not an unprimeable number, because it can be changed into a prime (856045117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 858123 + ... + 859119.

It is an arithmetic number, because the mean of its divisors is an integer number (71676360).

Almost surely, 2^856045137 is an apocalyptic number.

It is an amenable number.

856045137 is a deficient number, since it is larger than the sum of its proper divisors (290776623).

856045137 is a wasteful number, since it uses less digits than its factorization.

856045137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 856045137 is about 29258.2490419369. The cubic root of 856045137 is about 949.5085683580.

The spelling of 856045137 in words is "eight hundred fifty-six million, forty-five thousand, one hundred thirty-seven".