2140512443 has 4 divisors (see below), whose sum is σ = 2145904560. Its totient is φ = 2135120328.

The previous prime is 2140512433. The next prime is 2140512467. The reversal of 2140512443 is 3442150412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2140512443 - 2¹⁰ = 2140511419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2140512433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2695463 + ... + 2696256.

It is an arithmetic number, because the mean of its divisors is an integer number (536476140).

Almost surely, 2^2140512443 is an apocalyptic number.

2140512443 is a deficient number, since it is larger than the sum of its proper divisors (5392117).

2140512443 is an equidigital number, since it uses as much as digits as its factorization.

2140512443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5392116.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2140512443 is about 46265.6724040622. The cubic root of 2140512443 is about 1288.7615947927.

Adding to 2140512443 its reverse (3442150412), we get a palindrome (5582662855).

The spelling of 2140512443 in words is "two billion, one hundred forty million, five hundred twelve thousand, four hundred forty-three".