9931142 has 16 divisors (see below), whose sum is σ = 16284912. Its totient is φ = 4514400.

The previous prime is 9931123. The next prime is 9931171. The reversal of 9931142 is 2411399.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1109 + ... + 4592.

It is an arithmetic number, because the mean of its divisors is an integer number (1017807).

Almost surely, 2^9931142 is an apocalyptic number.

9931142 is a deficient number, since it is larger than the sum of its proper divisors (6353770).

9931142 is a wasteful number, since it uses less digits than its factorization.

9931142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5783.

The product of its digits is 1944, while the sum is 29.

The square root of 9931142 is about 3151.3714474812. The cubic root of 9931142 is about 214.9478294184.

The spelling of 9931142 in words is "nine million, nine hundred thirty-one thousand, one hundred forty-two".