1442043121 has 8 divisors (see below), whose sum is σ = 1505193984. Its totient is φ = 1378930080.

The previous prime is 1442043107. The next prime is 1442043137. The reversal of 1442043121 is 1213402441.

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 1442043121 - 2⁷ = 1442042993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1442043092 and 1442043101.

It is not an unprimeable number, because it can be changed into a prime (1442043101) 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 7 ways as a sum of consecutive naturals, for example, 91536 + ... + 106126.

It is an arithmetic number, because the mean of its divisors is an integer number (188149248).

Almost surely, 2^1442043121 is an apocalyptic number.

It is an amenable number.

1442043121 is a deficient number, since it is larger than the sum of its proper divisors (63150863).

1442043121 is a wasteful number, since it uses less digits than its factorization.

1442043121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18911.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1442043121 is about 37974.2428627616. The cubic root of 1442043121 is about 1129.7770518464. Note that the first 3 decimals are identical.

Adding to 1442043121 its reverse (1213402441), we get a palindrome (2655445562).

The spelling of 1442043121 in words is "one billion, four hundred forty-two million, forty-three thousand, one hundred twenty-one".