3143140 has 96 divisors (see below), whose sum is σ = 8918784. Its totient is φ = 898560.

The previous prime is 3143137. The next prime is 3143141. The reversal of 3143140 is 413413.

It is not an unprimeable number, because it can be changed into a prime (3143141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19942 + ... + 20098.

It is an arithmetic number, because the mean of its divisors is an integer number (92904).

Almost surely, 2^3143140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3143140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4459392).

3143140 is an abundant number, since it is smaller than the sum of its proper divisors (5775644).

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

3143140 is a wasteful number, since it uses less digits than its factorization.

3143140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3143140 is about 1772.8902955344. The cubic root of 3143140 is about 146.4832302672.

Adding to 3143140 its reverse (413413), we get a palindrome (3556553).

The spelling of 3143140 in words is "three million, one hundred forty-three thousand, one hundred forty".