1142443133 has 8 divisors (see below), whose sum is σ = 1230716928. Its totient is φ = 1054225584.

The previous prime is 1142443123. The next prime is 1142443151. The reversal of 1142443133 is 3313442411.

It is a happy number.

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 1142443133 - 2¹⁶ = 1142377597 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 (1142443123) 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, 34316 + ... + 58842.

It is an arithmetic number, because the mean of its divisors is an integer number (153839616).

Almost surely, 2^1142443133 is an apocalyptic number.

1142443133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1142443133 is a deficient number, since it is larger than the sum of its proper divisors (88273795).

1142443133 is a wasteful number, since it uses less digits than its factorization.

1142443133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28123.

The product of its digits is 3456, while the sum is 26.

The square root of 1142443133 is about 33800.0463461221. The cubic root of 1142443133 is about 1045.3896528486.

Adding to 1142443133 its reverse (3313442411), we get a palindrome (4455885544).

The spelling of 1142443133 in words is "one billion, one hundred forty-two million, four hundred forty-three thousand, one hundred thirty-three".