99868143 has 16 divisors (see below), whose sum is σ = 141172736. Its totient is φ = 62687520.

The previous prime is 99868117. The next prime is 99868159. The reversal of 99868143 is 34186899.

It is not a de Polignac number, because 99868143 - 2⁹ = 99867631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99868092 and 99868101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99863143) 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, 11071 + ... + 17952.

It is an arithmetic number, because the mean of its divisors is an integer number (8823296).

Almost surely, 2^99868143 is an apocalyptic number.

99868143 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

99868143 is a deficient number, since it is larger than the sum of its proper divisors (41304593).

99868143 is a wasteful number, since it uses less digits than its factorization.

99868143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29094.

The product of its digits is 373248, while the sum is 48.

The square root of 99868143 is about 9993.4049752824. The cubic root of 99868143 is about 463.9547849694.

The spelling of 99868143 in words is "ninety-nine million, eight hundred sixty-eight thousand, one hundred forty-three".