143744747449 has 2 divisors, whose sum is σ = 143744747450. Its totient is φ = 143744747448.

The previous prime is 143744747357. The next prime is 143744747483. The reversal of 143744747449 is 944747447341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132373724224 + 11371023225 = 363832^2 + 106635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143744747449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143744747393 and 143744747402.

It is not a weakly prime, because it can be changed into another prime (143744747149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71872373724 + 71872373725.

It is an arithmetic number, because the mean of its divisors is an integer number (71872373725).

Almost surely, 2^143744747449 is an apocalyptic number.

It is an amenable number.

143744747449 is a deficient number, since it is larger than the sum of its proper divisors (1).

143744747449 is an equidigital number, since it uses as much as digits as its factorization.

143744747449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37933056, while the sum is 58.

The spelling of 143744747449 in words is "one hundred forty-three billion, seven hundred forty-four million, seven hundred forty-seven thousand, four hundred forty-nine".