2143294 has 12 divisors (see below), whose sum is σ = 3305232. Its totient is φ = 1041900.

The previous prime is 2143279. The next prime is 2143313. The reversal of 2143294 is 4923412.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14119 + ... + 14269.

It is an arithmetic number, because the mean of its divisors is an integer number (275436).

2^2143294 is an apocalyptic number.

2143294 is a deficient number, since it is larger than the sum of its proper divisors (1161938).

2143294 is an equidigital number, since it uses as much as digits as its factorization.

2143294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351 (or 200 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 2143294 is about 1463.9993169397. Note that the first 3 decimals coincide. The cubic root of 2143294 is about 128.9319593912.

The spelling of 2143294 in words is "two million, one hundred forty-three thousand, two hundred ninety-four".