1442323143 has 12 divisors (see below), whose sum is σ = 2150561088. Its totient is φ = 930530880.

The previous prime is 1442323097. The next prime is 1442323153. The reversal of 1442323143 is 3413232441.

1442323143 is a `hidden beast` number, since 1 + 4 + 423 + 231 + 4 + 3 = 666.

It is not a de Polignac number, because 1442323143 - 2⁹ = 1442322631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442323153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2584530 + ... + 2585087.

It is an arithmetic number, because the mean of its divisors is an integer number (179213424).

Almost surely, 2^1442323143 is an apocalyptic number.

1442323143 is a deficient number, since it is larger than the sum of its proper divisors (708237945).

1442323143 is a wasteful number, since it uses less digits than its factorization.

1442323143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5169654 (or 5169651 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 1442323143 is about 37977.9296829093. The cubic root of 1442323143 is about 1129.8501754005.

Adding to 1442323143 its reverse (3413232441), we get a palindrome (4855555584).

The spelling of 1442323143 in words is "one billion, four hundred forty-two million, three hundred twenty-three thousand, one hundred forty-three".