2142343 has 4 divisors (see below), whose sum is σ = 2448400. Its totient is φ = 1836288.

The previous prime is 2142341. The next prime is 2142353. The reversal of 2142343 is 3432412.

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 2142343 - 2¹ = 2142341 is a prime.

It is a d-powerful number, because it can be written as 2 + 1 + 4³ + 2⁷ + 3¹² + 4⁷ + 3¹³ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2142343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142341) 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, 153018 + ... + 153031.

It is an arithmetic number, because the mean of its divisors is an integer number (612100).

2^2142343 is an apocalyptic number.

2142343 is a deficient number, since it is larger than the sum of its proper divisors (306057).

2142343 is an equidigital number, since it uses as much as digits as its factorization.

2142343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306056.

The product of its digits is 576, while the sum is 19.

The square root of 2142343 is about 1463.6744856695. The cubic root of 2142343 is about 128.9128871232.

Adding to 2142343 its reverse (3432412), we get a palindrome (5574755).

It can be divided in two parts, 2142 and 343, that added together give a triangular number (2485 = T₇₀).

The spelling of 2142343 in words is "two million, one hundred forty-two thousand, three hundred forty-three".