144252636497 has 2 divisors, whose sum is σ = 144252636498. Its totient is φ = 144252636496.

The previous prime is 144252636469. The next prime is 144252636523. The reversal of 144252636497 is 794636252441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128342346001 + 15910290496 = 358249^2 + 126136^2 .

It is a cyclic number.

It is not a de Polignac number, because 144252636497 - 2⁶ = 144252636433 is a prime.

It is not a weakly prime, because it can be changed into another prime (144252636197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72126318248 + 72126318249.

It is an arithmetic number, because the mean of its divisors is an integer number (72126318249).

Almost surely, 2^144252636497 is an apocalyptic number.

It is an amenable number.

144252636497 is a deficient number, since it is larger than the sum of its proper divisors (1).

144252636497 is an equidigital number, since it uses as much as digits as its factorization.

144252636497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 53.

The spelling of 144252636497 in words is "one hundred forty-four billion, two hundred fifty-two million, six hundred thirty-six thousand, four hundred ninety-seven".