2140943 has 4 divisors (see below), whose sum is σ = 2446800. Its totient is φ = 1835088.

The previous prime is 2140937. The next prime is 2140967. The reversal of 2140943 is 3490412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2140943 - 2¹⁰ = 2139919 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 (2140903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152918 + ... + 152931.

It is an arithmetic number, because the mean of its divisors is an integer number (611700).

2^2140943 is an apocalyptic number.

2140943 is a deficient number, since it is larger than the sum of its proper divisors (305857).

2140943 is an equidigital number, since it uses as much as digits as its factorization.

2140943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305856.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 2140943 is about 1463.1961590983. The cubic root of 2140943 is about 128.8847999044.

The spelling of 2140943 in words is "two million, one hundred forty thousand, nine hundred forty-three".