2142057843 has 6 divisors (see below), whose sum is σ = 3094083564. Its totient is φ = 1428038556.

The previous prime is 2142057811. The next prime is 2142057877. The reversal of 2142057843 is 3487502412.

It is a happy number.

2142057843 is a `hidden beast` number, since 2 + 1 + 42 + 0 + 578 + 43 = 666.

It is not a de Polignac number, because 2142057843 - 2⁵ = 2142057811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2142057798 and 2142057807.

It is not an unprimeable number, because it can be changed into a prime (2142058843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119003205 + ... + 119003222.

It is an arithmetic number, because the mean of its divisors is an integer number (515680594).

Almost surely, 2^2142057843 is an apocalyptic number.

2142057843 is a deficient number, since it is larger than the sum of its proper divisors (952025721).

2142057843 is a wasteful number, since it uses less digits than its factorization.

2142057843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238006433 (or 238006430 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 2142057843 is about 46282.3707582055. The cubic root of 2142057843 is about 1289.0716721075.

The spelling of 2142057843 in words is "two billion, one hundred forty-two million, fifty-seven thousand, eight hundred forty-three".