9817142 has 8 divisors (see below), whose sum is σ = 15200832. Its totient is φ = 4750200.

The previous prime is 9817141. The next prime is 9817151. The reversal of 9817142 is 2417189.

9817142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 9817099 and 9817108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9817141) 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, 79109 + ... + 79232.

It is an arithmetic number, because the mean of its divisors is an integer number (1900104).

Almost surely, 2^9817142 is an apocalyptic number.

9817142 is a deficient number, since it is larger than the sum of its proper divisors (5383690).

9817142 is a wasteful number, since it uses less digits than its factorization.

9817142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158374.

The product of its digits is 4032, while the sum is 32.

The square root of 9817142 is about 3133.2318777901. The cubic root of 9817142 is about 214.1221970751.

The spelling of 9817142 in words is "nine million, eight hundred seventeen thousand, one hundred forty-two".