144804361543 has 4 divisors (see below), whose sum is σ = 146787983008. Its totient is φ = 142820740080.

The previous prime is 144804361517. The next prime is 144804361549. The reversal of 144804361543 is 345163408441.

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 144804361543 - 2²¹ = 144802264391 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 144804361543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144804361549) 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, 991810623 + ... + 991810768.

It is an arithmetic number, because the mean of its divisors is an integer number (36696995752).

Almost surely, 2^144804361543 is an apocalyptic number.

144804361543 is a deficient number, since it is larger than the sum of its proper divisors (1983621465).

144804361543 is an equidigital number, since it uses as much as digits as its factorization.

144804361543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983621464.

The product of its (nonzero) digits is 552960, while the sum is 43.

Adding to 144804361543 its reverse (345163408441), we get a palindrome (489967769984).

The spelling of 144804361543 in words is "one hundred forty-four billion, eight hundred four million, three hundred sixty-one thousand, five hundred forty-three".