144511639547 has 4 divisors (see below), whose sum is σ = 157649061336. Its totient is φ = 131374217760.

The previous prime is 144511639541. The next prime is 144511639567. The reversal of 144511639547 is 745936115441.

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 144511639547 - 2⁶ = 144511639483 is a prime.

It is a super-2 number, since 2×144511639547² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144511639495 and 144511639504.

It is not an unprimeable number, because it can be changed into a prime (144511639541) 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, 6568710878 + ... + 6568710899.

It is an arithmetic number, because the mean of its divisors is an integer number (39412265334).

Almost surely, 2^144511639547 is an apocalyptic number.

144511639547 is a deficient number, since it is larger than the sum of its proper divisors (13137421789).

144511639547 is a wasteful number, since it uses less digits than its factorization.

144511639547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13137421788.

The product of its digits is 1814400, while the sum is 50.

The spelling of 144511639547 in words is "one hundred forty-four billion, five hundred eleven million, six hundred thirty-nine thousand, five hundred forty-seven".