1442143141 has 4 divisors (see below), whose sum is σ = 1442925792. Its totient is φ = 1441360492.

The previous prime is 1442143127. The next prime is 1442143181. The reversal of 1442143141 is 1413412441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1413412441 = 7 ⋅201916063.

It is a cyclic number.

It is not a de Polignac number, because 1442143141 - 2¹³ = 1442134949 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 (1442143121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388555 + ... + 392248.

It is an arithmetic number, because the mean of its divisors is an integer number (360731448).

Almost surely, 2^1442143141 is an apocalyptic number.

It is an amenable number.

1442143141 is a deficient number, since it is larger than the sum of its proper divisors (782651).

1442143141 is an equidigital number, since it uses as much as digits as its factorization.

1442143141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782650.

The product of its digits is 1536, while the sum is 25.

The square root of 1442143141 is about 37975.5597852092. The cubic root of 1442143141 is about 1129.8031716590.

Adding to 1442143141 its reverse (1413412441), we get a palindrome (2855555582).

The spelling of 1442143141 in words is "one billion, four hundred forty-two million, one hundred forty-three thousand, one hundred forty-one".