144455112505 has 12 divisors (see below), whose sum is σ = 190537488036. Its totient is φ = 105058263200.

The previous prime is 144455112499. The next prime is 144455112611. The reversal of 144455112505 is 505211554441.

It can be written as a sum of positive squares in 2 ways, for example, as 100585391104 + 43869721401 = 317152^2 + 209451^2 .

It is not a de Polignac number, because 144455112505 - 2⁷ = 144455112377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119383786 + ... + 119384995.

It is an arithmetic number, because the mean of its divisors is an integer number (15878124003).

Almost surely, 2^144455112505 is an apocalyptic number.

It is an amenable number.

144455112505 is a deficient number, since it is larger than the sum of its proper divisors (46082375531).

144455112505 is a wasteful number, since it uses less digits than its factorization.

144455112505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238768808 (or 238768797 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 37.

Adding to 144455112505 its reverse (505211554441), we get a palindrome (649666666946).

The spelling of 144455112505 in words is "one hundred forty-four billion, four hundred fifty-five million, one hundred twelve thousand, five hundred five".