2143071439 has 8 divisors (see below), whose sum is σ = 2173712112. Its totient is φ = 2112465600.

The previous prime is 2143071433. The next prime is 2143071449. The reversal of 2143071439 is 9341703412.

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

It is a cyclic number.

It is not a de Polignac number, because 2143071439 - 2³ = 2143071431 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 (2143071431) 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, 131052 + ... + 146494.

It is an arithmetic number, because the mean of its divisors is an integer number (271714014).

Almost surely, 2^2143071439 is an apocalyptic number.

2143071439 is a deficient number, since it is larger than the sum of its proper divisors (30640673).

2143071439 is a wasteful number, since it uses less digits than its factorization.

2143071439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17417.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 2143071439 is about 46293.3195936520. The cubic root of 2143071439 is about 1289.2749644478.

The spelling of 2143071439 in words is "two billion, one hundred forty-three million, seventy-one thousand, four hundred thirty-nine".