2143065 has 8 divisors (see below), whose sum is σ = 3428928. Its totient is φ = 1142960.

The previous prime is 2143051. The next prime is 2143069. The reversal of 2143065 is 5603412.

It is a happy number.

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

It is not a de Polignac number, because 2143065 - 2¹⁴ = 2126681 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2143069) 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, 71421 + ... + 71450.

It is an arithmetic number, because the mean of its divisors is an integer number (428616).

2^2143065 is an apocalyptic number.

It is an amenable number.

2143065 is a deficient number, since it is larger than the sum of its proper divisors (1285863).

2143065 is a wasteful number, since it uses less digits than its factorization.

2143065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142879.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2143065 is about 1463.9211044315. The cubic root of 2143065 is about 128.9273673209.

Adding to 2143065 its reverse (5603412), we get a palindrome (7746477).

The spelling of 2143065 in words is "two million, one hundred forty-three thousand, sixty-five".