1142441555 has 4 divisors (see below), whose sum is σ = 1370929872. Its totient is φ = 913953240.

The previous prime is 1142441537. The next prime is 1142441561. The reversal of 1142441555 is 5551442411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5551442411 = 10259 ⋅541129.

It is not a de Polignac number, because 1142441555 - 2⁶ = 1142441491 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114244151 + ... + 114244160.

It is an arithmetic number, because the mean of its divisors is an integer number (342732468).

Almost surely, 2^1142441555 is an apocalyptic number.

1142441555 is a deficient number, since it is larger than the sum of its proper divisors (228488317).

1142441555 is an equidigital number, since it uses as much as digits as its factorization.

1142441555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228488316.

The product of its digits is 16000, while the sum is 32.

The square root of 1142441555 is about 33800.0230029508. The cubic root of 1142441555 is about 1045.3891715334.

Adding to 1142441555 its reverse (5551442411), we get a palindrome (6693883966).

The spelling of 1142441555 in words is "one billion, one hundred forty-two million, four hundred forty-one thousand, five hundred fifty-five".