9851142 has 32 divisors (see below), whose sum is σ = 22809600. Its totient is φ = 2778048.

The previous prime is 9851141. The next prime is 9851147. The reversal of 9851142 is 2411589.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9851141) 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, 1834 + ... + 4802.

It is an arithmetic number, because the mean of its divisors is an integer number (712800).

Almost surely, 2^9851142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9851142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11404800).

9851142 is an abundant number, since it is smaller than the sum of its proper divisors (12958458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9851142 is a wasteful number, since it uses less digits than its factorization.

9851142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060.

The product of its digits is 2880, while the sum is 30.

The square root of 9851142 is about 3138.6528957500. The cubic root of 9851142 is about 214.3691041793.

The spelling of 9851142 in words is "nine million, eight hundred fifty-one thousand, one hundred forty-two".