9865142 has 16 divisors (see below), whose sum is σ = 17802240. Its totient is φ = 4005288.

The previous prime is 9865139. The next prime is 9865153. The reversal of 9865142 is 2415689.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18278 + ... + 18809.

It is an arithmetic number, because the mean of its divisors is an integer number (1112640).

Almost surely, 2^9865142 is an apocalyptic number.

9865142 is a deficient number, since it is larger than the sum of its proper divisors (7937098).

9865142 is a wasteful number, since it uses less digits than its factorization.

9865142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37115.

The product of its digits is 17280, while the sum is 35.

The square root of 9865142 is about 3140.8823601020. The cubic root of 9865142 is about 214.4706066877.

The spelling of 9865142 in words is "nine million, eight hundred sixty-five thousand, one hundred forty-two".