1445653561349 has 2 divisors, whose sum is σ = 1445653561350. Its totient is φ = 1445653561348.

The previous prime is 1445653561199. The next prime is 1445653561367. The reversal of 1445653561349 is 9431653565441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 884775390625 + 560878170724 = 940625^2 + 748918^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445653561349 - 2¹² = 1445653557253 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1445653561294 and 1445653561303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445653561949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722826780674 + 722826780675.

It is an arithmetic number, because the mean of its divisors is an integer number (722826780675).

Almost surely, 2^{1445653561349} is an apocalyptic number.

It is an amenable number.

1445653561349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445653561349 is an equidigital number, since it uses as much as digits as its factorization.

1445653561349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328000, while the sum is 56.

It can be divided in two parts, 1445653 and 561349, that added together give a palindrome (2007002).

The spelling of 1445653561349 in words is "one trillion, four hundred forty-five billion, six hundred fifty-three million, five hundred sixty-one thousand, three hundred forty-nine".