1442344121 has 2 divisors, whose sum is σ = 1442344122. Its totient is φ = 1442344120.

The previous prime is 1442344103. The next prime is 1442344129. The reversal of 1442344121 is 1214432441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1255639225 + 186704896 = 35435^2 + 13664^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442344121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1442344129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721172060 + 721172061.

It is an arithmetic number, because the mean of its divisors is an integer number (721172061).

Almost surely, 2^1442344121 is an apocalyptic number.

It is an amenable number.

1442344121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442344121 is an equidigital number, since it uses as much as digits as its factorization.

1442344121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3072, while the sum is 26.

The square root of 1442344121 is about 37978.2058686294. The cubic root of 1442344121 is about 1129.8556531101.

Adding to 1442344121 its reverse (1214432441), we get a palindrome (2656776562).

The spelling of 1442344121 in words is "one billion, four hundred forty-two million, three hundred forty-four thousand, one hundred twenty-one".