865085945 has 8 divisors (see below), whose sum is σ = 1051244160. Its totient is φ = 683308080.

The previous prime is 865085927. The next prime is 865085951. The reversal of 865085945 is 549580568.

865085945 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 865085945 - 2¹² = 865081849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 865085893 and 865085902.

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, 1094651 + ... + 1095440.

It is an arithmetic number, because the mean of its divisors is an integer number (131405520).

Almost surely, 2^865085945 is an apocalyptic number.

It is an amenable number.

865085945 is a deficient number, since it is larger than the sum of its proper divisors (186158215).

865085945 is a wasteful number, since it uses less digits than its factorization.

865085945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190175.

The product of its (nonzero) digits is 1728000, while the sum is 50.

The square root of 865085945 is about 29412.3434122479. The cubic root of 865085945 is about 952.8394988946.

The spelling of 865085945 in words is "eight hundred sixty-five million, eighty-five thousand, nine hundred forty-five".