144171427547 has 4 divisors (see below), whose sum is σ = 164767345776. Its totient is φ = 123575509320.

The previous prime is 144171427537. The next prime is 144171427591. The reversal of 144171427547 is 745724171441.

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 144171427547 - 2⁸ = 144171427291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144171427537) 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, 10297959104 + ... + 10297959117.

It is an arithmetic number, because the mean of its divisors is an integer number (41191836444).

Almost surely, 2^144171427547 is an apocalyptic number.

144171427547 is a deficient number, since it is larger than the sum of its proper divisors (20595918229).

144171427547 is an equidigital number, since it uses as much as digits as its factorization.

144171427547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20595918228.

The product of its digits is 878080, while the sum is 47.

Adding to 144171427547 its reverse (745724171441), we get a palindrome (889895598988).

The spelling of 144171427547 in words is "one hundred forty-four billion, one hundred seventy-one million, four hundred twenty-seven thousand, five hundred forty-seven".