144155445427 has 4 divisors (see below), whose sum is σ = 164749080496. Its totient is φ = 123561810360.

The previous prime is 144155445419. The next prime is 144155445493. The reversal of 144155445427 is 724544551441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144155445427 - 2³ = 144155445419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144155415427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10296817524 + ... + 10296817537.

It is an arithmetic number, because the mean of its divisors is an integer number (41187270124).

Almost surely, 2^144155445427 is an apocalyptic number.

144155445427 is a deficient number, since it is larger than the sum of its proper divisors (20593635069).

144155445427 is an equidigital number, since it uses as much as digits as its factorization.

144155445427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20593635068.

The product of its digits is 1792000, while the sum is 46.

Adding to 144155445427 its reverse (724544551441), we get a palindrome (868699996868).

The spelling of 144155445427 in words is "one hundred forty-four billion, one hundred fifty-five million, four hundred forty-five thousand, four hundred twenty-seven".