2143814 has 4 divisors (see below), whose sum is σ = 3215724. Its totient is φ = 1071906.

The previous prime is 2143793. The next prime is 2143829. The reversal of 2143814 is 4183412.

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

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 2143814.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535952 + ... + 535955.

It is an arithmetic number, because the mean of its divisors is an integer number (803931).

2^2143814 is an apocalyptic number.

2143814 is a deficient number, since it is larger than the sum of its proper divisors (1071910).

2143814 is a wasteful number, since it uses less digits than its factorization.

2143814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071909.

The product of its digits is 768, while the sum is 23.

The square root of 2143814 is about 1464.1769018804. The cubic root of 2143814 is about 128.9423855853.

The spelling of 2143814 in words is "two million, one hundred forty-three thousand, eight hundred fourteen".