2143641 has 8 divisors (see below), whose sum is σ = 2892960. Its totient is φ = 1411712.

The previous prime is 2143627. The next prime is 2143667. The reversal of 2143641 is 1463412.

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 2143641 - 2¹¹ = 2141593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2143621) 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, 4056 + ... + 4553.

It is an arithmetic number, because the mean of its divisors is an integer number (361620).

2^2143641 is an apocalyptic number.

It is an amenable number.

2143641 is a deficient number, since it is larger than the sum of its proper divisors (749319).

2143641 is an equidigital number, since it uses as much as digits as its factorization.

2143641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8695.

The product of its digits is 576, while the sum is 21.

The square root of 2143641 is about 1464.1178231276. The cubic root of 2143641 is about 128.9389170579.

The spelling of 2143641 in words is "two million, one hundred forty-three thousand, six hundred forty-one".