144553403261 has 4 divisors (see below), whose sum is σ = 144947282112. Its totient is φ = 144159524412.

The previous prime is 144553403251. The next prime is 144553403299. The reversal of 144553403261 is 162304355441.

144553403261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 162304355441 = 859 ⋅188945699.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144553403261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144553403251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196938875 + ... + 196939608.

It is an arithmetic number, because the mean of its divisors is an integer number (36236820528).

Almost surely, 2^144553403261 is an apocalyptic number.

It is an amenable number.

144553403261 is a deficient number, since it is larger than the sum of its proper divisors (393878851).

144553403261 is an equidigital number, since it uses as much as digits as its factorization.

144553403261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393878850.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 144553403261 in words is "one hundred forty-four billion, five hundred fifty-three million, four hundred three thousand, two hundred sixty-one".