2043142 has 4 divisors (see below), whose sum is σ = 3064716. Its totient is φ = 1021570.

The previous prime is 2043121. The next prime is 2043149. The reversal of 2043142 is 2413402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2413402 = 2 ⋅1206701.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510784 + ... + 510787.

It is an arithmetic number, because the mean of its divisors is an integer number (766179).

2^2043142 is an apocalyptic number.

2043142 is a deficient number, since it is larger than the sum of its proper divisors (1021574).

2043142 is a wasteful number, since it uses less digits than its factorization.

2043142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021573.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2043142 is about 1429.3851825173. The cubic root of 2043142 is about 126.8915932741.

Adding to 2043142 its reverse (2413402), we get a palindrome (4456544).

The spelling of 2043142 in words is "two million, forty-three thousand, one hundred forty-two".