2143020859 has 8 divisors (see below), whose sum is σ = 2533620960. Its totient is φ = 1773534336.

The previous prime is 2143020853. The next prime is 2143020877. The reversal of 2143020859 is 9580203412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2143020859 - 2⁵ = 2143020827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2143020853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5278174 + ... + 5278579.

It is an arithmetic number, because the mean of its divisors is an integer number (316702620).

Almost surely, 2^2143020859 is an apocalyptic number.

2143020859 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2143020859 is a deficient number, since it is larger than the sum of its proper divisors (390600101).

2143020859 is a wasteful number, since it uses less digits than its factorization.

2143020859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10556789.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2143020859 is about 46292.7732913033. The cubic root of 2143020859 is about 1289.2648213670.

The spelling of 2143020859 in words is "two billion, one hundred forty-three million, twenty thousand, eight hundred fifty-nine".