2143230751 has 4 divisors (see below), whose sum is σ = 2157615000. Its totient is φ = 2128846504.

The previous prime is 2143230743. The next prime is 2143230763. The reversal of 2143230751 is 1570323412.

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 2143230751 - 2³ = 2143230743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143230701) 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 3 ways as a sum of consecutive naturals, for example, 7191901 + ... + 7192198.

It is an arithmetic number, because the mean of its divisors is an integer number (539403750).

Almost surely, 2^2143230751 is an apocalyptic number.

2143230751 is a deficient number, since it is larger than the sum of its proper divisors (14384249).

2143230751 is a wasteful number, since it uses less digits than its factorization.

2143230751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14384248.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 2143230751 is about 46295.0402419093. The cubic root of 2143230751 is about 1289.3069111016.

The spelling of 2143230751 in words is "two billion, one hundred forty-three million, two hundred thirty thousand, seven hundred fifty-one".