1142442223 has 16 divisors (see below), whose sum is σ = 1293659136. Its totient is φ = 1000977120.

The previous prime is 1142442173. The next prime is 1142442263. The reversal of 1142442223 is 3222442411.

It is not a de Polignac number, because 1142442223 - 2¹³ = 1142434031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142442263) 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 15 ways as a sum of consecutive naturals, for example, 24586 + ... + 53752.

It is an arithmetic number, because the mean of its divisors is an integer number (80853696).

Almost surely, 2^1142442223 is an apocalyptic number.

1142442223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1142442223 is a deficient number, since it is larger than the sum of its proper divisors (151216913).

1142442223 is a wasteful number, since it uses less digits than its factorization.

1142442223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29334.

The product of its digits is 3072, while the sum is 25.

The square root of 1142442223 is about 33800.0328845994. The cubic root of 1142442223 is about 1045.3893752841.

Adding to 1142442223 its reverse (3222442411), we get a palindrome (4364884634).

The spelling of 1142442223 in words is "one billion, one hundred forty-two million, four hundred forty-two thousand, two hundred twenty-three".