144061655261 has 2 divisors, whose sum is σ = 144061655262. Its totient is φ = 144061655260.

The previous prime is 144061655249. The next prime is 144061655317. The reversal of 144061655261 is 162556160441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127927828900 + 16133826361 = 357670^2 + 127019^2 .

It is a cyclic number.

It is not a de Polignac number, because 144061655261 - 2⁶ = 144061655197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144061615261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72030827630 + 72030827631.

It is an arithmetic number, because the mean of its divisors is an integer number (72030827631).

Almost surely, 2^144061655261 is an apocalyptic number.

It is an amenable number.

144061655261 is a deficient number, since it is larger than the sum of its proper divisors (1).

144061655261 is an equidigital number, since it uses as much as digits as its factorization.

144061655261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 144061655261 in words is "one hundred forty-four billion, sixty-one million, six hundred fifty-five thousand, two hundred sixty-one".