144419180545 has 4 divisors (see below), whose sum is σ = 173303016660. Its totient is φ = 115535344432.

The previous prime is 144419180531. The next prime is 144419180551. The reversal of 144419180545 is 545081914441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545081914441 = 641 ⋅850361801.

It can be written as a sum of positive squares in 2 ways, for example, as 110577531024 + 33841649521 = 332532^2 + 183961^2 .

It is a cyclic number.

It is not a de Polignac number, because 144419180545 - 2¹³ = 144419172353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144419180495 and 144419180504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14441918050 + ... + 14441918059.

It is an arithmetic number, because the mean of its divisors is an integer number (43325754165).

Almost surely, 2^144419180545 is an apocalyptic number.

It is an amenable number.

144419180545 is a deficient number, since it is larger than the sum of its proper divisors (28883836115).

144419180545 is an equidigital number, since it uses as much as digits as its factorization.

144419180545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28883836114.

The product of its (nonzero) digits is 460800, while the sum is 46.

The spelling of 144419180545 in words is "one hundred forty-four billion, four hundred nineteen million, one hundred eighty thousand, five hundred forty-five".