869011139 has 16 divisors (see below), whose sum is σ = 925240320. Its totient is φ = 814482240.

The previous prime is 869011133. The next prime is 869011141. The reversal of 869011139 is 931110968.

869011139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-869011139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (869011133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247184 + ... + 250674.

It is an arithmetic number, because the mean of its divisors is an integer number (57827520).

Almost surely, 2^869011139 is an apocalyptic number.

869011139 is a deficient number, since it is larger than the sum of its proper divisors (56229181).

869011139 is a wasteful number, since it uses less digits than its factorization.

869011139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 869011139 is about 29478.9948777091. The cubic root of 869011139 is about 954.2784454883.

The spelling of 869011139 in words is "eight hundred sixty-nine million, eleven thousand, one hundred thirty-nine".