123116859 has 12 divisors (see below), whose sum is σ = 177949200. Its totient is φ = 82025424.

The previous prime is 123116843. The next prime is 123116867. The reversal of 123116859 is 958611321.

It is not a de Polignac number, because 123116859 - 2⁴ = 123116843 is a prime.

It is a super-3 number, since 3×123116859³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (123116899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14997 + ... + 21705.

It is an arithmetic number, because the mean of its divisors is an integer number (14829100).

Almost surely, 2^123116859 is an apocalyptic number.

123116859 is a deficient number, since it is larger than the sum of its proper divisors (54832341).

123116859 is a wasteful number, since it uses less digits than its factorization.

123116859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8754 (or 8751 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 123116859 is about 11095.8036662515. The cubic root of 123116859 is about 497.4764299499.

The spelling of 123116859 in words is "one hundred twenty-three million, one hundred sixteen thousand, eight hundred fifty-nine".