2131140140 has 12 divisors (see below), whose sum is σ = 4475394336. Its totient is φ = 852456048.

The previous prime is 2131140133. The next prime is 2131140163. The reversal of 2131140140 is 410411312.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53278484 + ... + 53278523.

It is an arithmetic number, because the mean of its divisors is an integer number (372949528).

Almost surely, 2^2131140140 is an apocalyptic number.

2131140140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131140140 is an abundant number, since it is smaller than the sum of its proper divisors (2344254196).

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

2131140140 is a wasteful number, since it uses less digits than its factorization.

2131140140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106557016 (or 106557014 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2131140140 is about 46164.2734157054. The cubic root of 2131140140 is about 1286.8778813624.

Adding to 2131140140 its reverse (410411312), we get a palindrome (2541551452).

The spelling of 2131140140 in words is "two billion, one hundred thirty-one million, one hundred forty thousand, one hundred forty".