855859137 has 24 divisors (see below), whose sum is σ = 1328700096. Its totient is φ = 488603808.

The previous prime is 855859127. The next prime is 855859159. The reversal of 855859137 is 731958558.

855859137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 855859137 - 2⁶ = 855859073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 855859137.

It is not an unprimeable number, because it can be changed into a prime (855859117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 211588 + ... + 215594.

It is an arithmetic number, because the mean of its divisors is an integer number (55362504).

Almost surely, 2^855859137 is an apocalyptic number.

It is an amenable number.

855859137 is a deficient number, since it is larger than the sum of its proper divisors (472840959).

855859137 is a wasteful number, since it uses less digits than its factorization.

855859137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5477 (or 5470 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 51.

The square root of 855859137 is about 29255.0702785004. The cubic root of 855859137 is about 949.4397941861.

The spelling of 855859137 in words is "eight hundred fifty-five million, eight hundred fifty-nine thousand, one hundred thirty-seven".