1142434243 has 4 divisors (see below), whose sum is σ = 1142510728. Its totient is φ = 1142357760.

The previous prime is 1142434229. The next prime is 1142434297. The reversal of 1142434243 is 3424342411.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1142434243 - 2⁵ = 1142434211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142434043) 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 in 3 ways as a sum of consecutive naturals, for example, 7713 + ... + 48418.

It is an arithmetic number, because the mean of its divisors is an integer number (285627682).

Almost surely, 2^1142434243 is an apocalyptic number.

1142434243 is a deficient number, since it is larger than the sum of its proper divisors (76485).

1142434243 is an equidigital number, since it uses as much as digits as its factorization.

1142434243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76484.

The product of its digits is 9216, while the sum is 28.

The square root of 1142434243 is about 33799.9148371708. The cubic root of 1142434243 is about 1045.3869412510.

Adding to 1142434243 its reverse (3424342411), we get a palindrome (4566776654).

The spelling of 1142434243 in words is "one billion, one hundred forty-two million, four hundred thirty-four thousand, two hundred forty-three".