123868199 has 16 divisors (see below), whose sum is σ = 155043840. Its totient is φ = 96340320.

The previous prime is 123868189. The next prime is 123868207. The reversal of 123868199 is 991868321.

It is a cyclic number.

It is not a de Polignac number, because 123868199 - 2²⁰ = 122819623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123868189) 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, 6167 + ... + 16904.

It is an arithmetic number, because the mean of its divisors is an integer number (9690240).

Almost surely, 2^123868199 is an apocalyptic number.

123868199 is a deficient number, since it is larger than the sum of its proper divisors (31175641).

123868199 is a wasteful number, since it uses less digits than its factorization.

123868199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23150.

The product of its digits is 186624, while the sum is 47.

The square root of 123868199 is about 11129.6091126328. The cubic root of 123868199 is about 498.4863543778.

The spelling of 123868199 in words is "one hundred twenty-three million, eight hundred sixty-eight thousand, one hundred ninety-nine".