2143574 has 4 divisors (see below), whose sum is σ = 3215364. Its totient is φ = 1071786.

The previous prime is 2143573. The next prime is 2143579. The reversal of 2143574 is 4753412.

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

It is a d-powerful number, because it can be written as 2¹⁷ + 1 + 4³ + 3¹⁰ + 5⁹ + 7 + 4⁴ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535892 + ... + 535895.

It is an arithmetic number, because the mean of its divisors is an integer number (803841).

2^2143574 is an apocalyptic number.

2143574 is a deficient number, since it is larger than the sum of its proper divisors (1071790).

2143574 is a wasteful number, since it uses less digits than its factorization.

2143574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071789.

The product of its digits is 3360, while the sum is 26.

The square root of 2143574 is about 1464.0949422766. The cubic root of 2143574 is about 128.9375737053.

Adding to 2143574 its reverse (4753412), we get a palindrome (6896986).

The spelling of 2143574 in words is "two million, one hundred forty-three thousand, five hundred seventy-four".