144929471261 has 2 divisors, whose sum is σ = 144929471262. Its totient is φ = 144929471260.

The previous prime is 144929471243. The next prime is 144929471311. The reversal of 144929471261 is 162174929441.

It is an a-pointer prime, because the next prime (144929471311) can be obtained adding 144929471261 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106122835225 + 38806636036 = 325765^2 + 196994^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144929471261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144929470261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72464735630 + 72464735631.

It is an arithmetic number, because the mean of its divisors is an integer number (72464735631).

Almost surely, 2^144929471261 is an apocalyptic number.

It is an amenable number.

144929471261 is a deficient number, since it is larger than the sum of its proper divisors (1).

144929471261 is an equidigital number, since it uses as much as digits as its factorization.

144929471261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 50.

The spelling of 144929471261 in words is "one hundred forty-four billion, nine hundred twenty-nine million, four hundred seventy-one thousand, two hundred sixty-one".