144531262489 has 2 divisors, whose sum is σ = 144531262490. Its totient is φ = 144531262488.

The previous prime is 144531262487. The next prime is 144531262501. The reversal of 144531262489 is 984262135441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106972822489 + 37558440000 = 327067^2 + 193800^2 .

It is a cyclic number.

It is not a de Polignac number, because 144531262489 - 2¹ = 144531262487 is a prime.

Together with 144531262487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (144531262487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72265631244 + 72265631245.

It is an arithmetic number, because the mean of its divisors is an integer number (72265631245).

Almost surely, 2^144531262489 is an apocalyptic number.

It is an amenable number.

144531262489 is a deficient number, since it is larger than the sum of its proper divisors (1).

144531262489 is an equidigital number, since it uses as much as digits as its factorization.

144531262489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1658880, while the sum is 49.

The spelling of 144531262489 in words is "one hundred forty-four billion, five hundred thirty-one million, two hundred sixty-two thousand, four hundred eighty-nine".