2140343 has 4 divisors (see below), whose sum is σ = 2176680. Its totient is φ = 2104008.

The previous prime is 2140337. The next prime is 2140349. The reversal of 2140343 is 3430412.

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

It is an interprime number because it is at equal distance from previous prime (2140337) and next prime (2140349).

It is a cyclic number.

It is not a de Polignac number, because 2140343 - 2⁶ = 2140279 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 1 + 4⁵ + 0 + 3⁹ + 4⁵ + 3¹³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140349) 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, 18080 + ... + 18197.

It is an arithmetic number, because the mean of its divisors is an integer number (544170).

2^2140343 is an apocalyptic number.

2140343 is a deficient number, since it is larger than the sum of its proper divisors (36337).

2140343 is an equidigital number, since it uses as much as digits as its factorization.

2140343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36336.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2140343 is about 1462.9911141220. The cubic root of 2140343 is about 128.8727587766.

Adding to 2140343 its reverse (3430412), we get a palindrome (5570755).

The spelling of 2140343 in words is "two million, one hundred forty thousand, three hundred forty-three".