2142487543 has 16 divisors (see below), whose sum is σ = 2594666304. Its totient is φ = 1727009280.

The previous prime is 2142487507. The next prime is 2142487547. The reversal of 2142487543 is 3457842412.

It is a cyclic number.

It is not a de Polignac number, because 2142487543 - 2¹⁷ = 2142356471 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2142487496 and 2142487505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142487547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157821 + ... + 170857.

It is an arithmetic number, because the mean of its divisors is an integer number (162166644).

Almost surely, 2^2142487543 is an apocalyptic number.

2142487543 is a deficient number, since it is larger than the sum of its proper divisors (452178761).

2142487543 is a wasteful number, since it uses less digits than its factorization.

2142487543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14442.

The product of its digits is 215040, while the sum is 40.

The square root of 2142487543 is about 46287.0126817448. The cubic root of 2142487543 is about 1289.1578629115.

The spelling of 2142487543 in words is "two billion, one hundred forty-two million, four hundred eighty-seven thousand, five hundred forty-three".