1444143455 has 16 divisors (see below), whose sum is σ = 1835802144. Its totient is φ = 1086827520.

The previous prime is 1444143427. The next prime is 1444143457. The reversal of 1444143455 is 5543414441.

It is not a de Polignac number, because 1444143455 - 2⁶ = 1444143391 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 (1444143457) 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 15 ways as a sum of consecutive naturals, for example, 345659 + ... + 349811.

It is an arithmetic number, because the mean of its divisors is an integer number (114737634).

Almost surely, 2^1444143455 is an apocalyptic number.

1444143455 is a deficient number, since it is larger than the sum of its proper divisors (391658689).

1444143455 is a wasteful number, since it uses less digits than its factorization.

1444143455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8266.

The product of its digits is 76800, while the sum is 35.

The square root of 1444143455 is about 38001.8875189115. The cubic root of 1444143455 is about 1130.3252920492.

Adding to 1444143455 its reverse (5543414441), we get a palindrome (6987557896).

The spelling of 1444143455 in words is "one billion, four hundred forty-four million, one hundred forty-three thousand, four hundred fifty-five".