2143864003 has 4 divisors (see below), whose sum is σ = 2156701680. Its totient is φ = 2131026328.

The previous prime is 2143863991. The next prime is 2143864043. The reversal of 2143864003 is 3004683412.

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 2143864003 - 2²⁵ = 2110309571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143864043) by changing a digit.

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, 6418588 + ... + 6418921.

It is an arithmetic number, because the mean of its divisors is an integer number (539175420).

Almost surely, 2^2143864003 is an apocalyptic number.

2143864003 is a deficient number, since it is larger than the sum of its proper divisors (12837677).

2143864003 is a wasteful number, since it uses less digits than its factorization.

2143864003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12837676.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 2143864003 is about 46301.8790439438. The cubic root of 2143864003 is about 1289.4338807526.

The spelling of 2143864003 in words is "two billion, one hundred forty-three million, eight hundred sixty-four thousand, three".