1142223443 has 8 divisors (see below), whose sum is σ = 1154256480. Its totient is φ = 1130204800.

The previous prime is 1142223409. The next prime is 1142223451. The reversal of 1142223443 is 3443222411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1142223443 - 2¹² = 1142219347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142223463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241778 + ... + 246456.

It is an arithmetic number, because the mean of its divisors is an integer number (144282060).

Almost surely, 2^1142223443 is an apocalyptic number.

1142223443 is a deficient number, since it is larger than the sum of its proper divisors (12033037).

1142223443 is a wasteful number, since it uses less digits than its factorization.

1142223443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7197.

The product of its digits is 4608, while the sum is 26.

The square root of 1142223443 is about 33796.7963422571. The cubic root of 1142223443 is about 1045.3226396296.

Adding to 1142223443 its reverse (3443222411), we get a palindrome (4585445854).

The spelling of 1142223443 in words is "one billion, one hundred forty-two million, two hundred twenty-three thousand, four hundred forty-three".