144531416429 has 2 divisors, whose sum is σ = 144531416430. Its totient is φ = 144531416428.

The previous prime is 144531416401. The next prime is 144531416489. The reversal of 144531416429 is 924614135441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81227850025 + 63303566404 = 285005^2 + 251602^2 .

It is an emirp because it is prime and its reverse (924614135441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144531416429 is a prime.

It is a super-2 number, since 2×144531416429² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 144531416429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144531416489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72265708214 + 72265708215.

It is an arithmetic number, because the mean of its divisors is an integer number (72265708215).

Almost surely, 2^144531416429 is an apocalyptic number.

It is an amenable number.

144531416429 is a deficient number, since it is larger than the sum of its proper divisors (1).

144531416429 is an equidigital number, since it uses as much as digits as its factorization.

144531416429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 44.

The spelling of 144531416429 in words is "one hundred forty-four billion, five hundred thirty-one million, four hundred sixteen thousand, four hundred twenty-nine".