2143959 has 8 divisors (see below), whose sum is σ = 2885760. Its totient is φ = 1415736.

The previous prime is 2143957. The next prime is 2143963. The reversal of 2143959 is 9593412.

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

It is not a de Polignac number, because 2143959 - 2¹ = 2143957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143957) 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, 3019 + ... + 3660.

It is an arithmetic number, because the mean of its divisors is an integer number (360720).

2^2143959 is an apocalyptic number.

2143959 is a deficient number, since it is larger than the sum of its proper divisors (741801).

2143959 is a wasteful number, since it uses less digits than its factorization.

2143959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6789.

The product of its digits is 9720, while the sum is 33.

The square root of 2143959 is about 1464.2264169178. The cubic root of 2143959 is about 128.9452925888.

The spelling of 2143959 in words is "two million, one hundred forty-three thousand, nine hundred fifty-nine".