144545220022025 has 6 divisors (see below), whose sum is σ = 179236072827342. Its totient is φ = 115636176017600.

The previous prime is 144545220022009. The next prime is 144545220022123. The reversal of 144545220022025 is 520220022545441.

It can be written as a sum of positive squares in 3 ways, for example, as 43864605857296 + 100680614164729 = 6623036^2 + 10033973^2 .

It is not a de Polignac number, because 144545220022025 - 2⁴ = 144545220022009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144545220022025.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2890904400416 + ... + 2890904400465.

It is an arithmetic number, because the mean of its divisors is an integer number (29872678804557).

Almost surely, 2^{144545220022025} is an apocalyptic number.

It is an amenable number.

144545220022025 is a deficient number, since it is larger than the sum of its proper divisors (34690852805317).

144545220022025 is an equidigital number, since it uses as much as digits as its factorization.

144545220022025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5781808800891 (or 5781808800886 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 38.

Adding to 144545220022025 its reverse (520220022545441), we get a palindrome (664765242567466).

The spelling of 144545220022025 in words is "one hundred forty-four trillion, five hundred forty-five billion, two hundred twenty million, twenty-two thousand, twenty-five".