144399553973 has 2 divisors, whose sum is σ = 144399553974. Its totient is φ = 144399553972.

The previous prime is 144399553897. The next prime is 144399553997. The reversal of 144399553973 is 379355993441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82608531889 + 61791022084 = 287417^2 + 248578^2 .

It is a cyclic number.

It is not a de Polignac number, because 144399553973 - 2²⁰ = 144398505397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144399523973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72199776986 + 72199776987.

It is an arithmetic number, because the mean of its divisors is an integer number (72199776987).

Almost surely, 2^144399553973 is an apocalyptic number.

It is an amenable number.

144399553973 is a deficient number, since it is larger than the sum of its proper divisors (1).

144399553973 is an equidigital number, since it uses as much as digits as its factorization.

144399553973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55112400, while the sum is 62.

The spelling of 144399553973 in words is "one hundred forty-four billion, three hundred ninety-nine million, five hundred fifty-three thousand, nine hundred seventy-three".