144243135455 has 16 divisors (see below), whose sum is σ = 177333305184. Its totient is φ = 112567441920.

The previous prime is 144243135451. The next prime is 144243135469. The reversal of 144243135455 is 554531342441.

It is not a de Polignac number, because 144243135455 - 2² = 144243135451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144243135451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2080052 + ... + 2148278.

It is an arithmetic number, because the mean of its divisors is an integer number (11083331574).

Almost surely, 2^144243135455 is an apocalyptic number.

144243135455 is a deficient number, since it is larger than the sum of its proper divisors (33090169729).

144243135455 is a wasteful number, since it uses less digits than its factorization.

144243135455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78586.

The product of its digits is 576000, while the sum is 41.

Adding to 144243135455 its reverse (554531342441), we get a palindrome (698774477896).

The spelling of 144243135455 in words is "one hundred forty-four billion, two hundred forty-three million, one hundred thirty-five thousand, four hundred fifty-five".