9916143 has 4 divisors (see below), whose sum is σ = 13221528. Its totient is φ = 6610760.

The previous prime is 9916139. The next prime is 9916163. The reversal of 9916143 is 3416199.

9916143 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3416199 = 3 ⋅1138733.

It is a cyclic number.

It is not a de Polignac number, because 9916143 - 2² = 9916139 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9916103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1652688 + ... + 1652693.

It is an arithmetic number, because the mean of its divisors is an integer number (3305382).

Almost surely, 2^9916143 is an apocalyptic number.

9916143 is a deficient number, since it is larger than the sum of its proper divisors (3305385).

9916143 is a wasteful number, since it uses less digits than its factorization.

9916143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3305384.

The product of its digits is 5832, while the sum is 33.

The square root of 9916143 is about 3148.9907907137. The cubic root of 9916143 is about 214.8395630201.

The spelling of 9916143 in words is "nine million, nine hundred sixteen thousand, one hundred forty-three".