144681114449 has 2 divisors, whose sum is σ = 144681114450. Its totient is φ = 144681114448.

The previous prime is 144681114439. The next prime is 144681114553. The reversal of 144681114449 is 944411186441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135700140625 + 8980973824 = 368375^2 + 94768^2 .

It is an emirp because it is prime and its reverse (944411186441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144681114449 is a prime.

It is a super-4 number, since 4×144681114449⁴ (a number of 46 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (144681114419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72340557224 + 72340557225.

It is an arithmetic number, because the mean of its divisors is an integer number (72340557225).

Almost surely, 2^144681114449 is an apocalyptic number.

It is an amenable number.

144681114449 is a deficient number, since it is larger than the sum of its proper divisors (1).

144681114449 is an equidigital number, since it uses as much as digits as its factorization.

144681114449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 442368, while the sum is 47.

The spelling of 144681114449 in words is "one hundred forty-four billion, six hundred eighty-one million, one hundred fourteen thousand, four hundred forty-nine".