1445553086191 has 2 divisors, whose sum is σ = 1445553086192. Its totient is φ = 1445553086190.

The previous prime is 1445553086167. The next prime is 1445553086203. The reversal of 1445553086191 is 1916803555441.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1445553086191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445553086141) 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, 722776543095 + 722776543096.

It is an arithmetic number, because the mean of its divisors is an integer number (722776543096).

Almost surely, 2^{1445553086191} is an apocalyptic number.

1445553086191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445553086191 is an equidigital number, since it uses as much as digits as its factorization.

1445553086191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592000, while the sum is 52.

The spelling of 1445553086191 in words is "one trillion, four hundred forty-five billion, five hundred fifty-three million, eighty-six thousand, one hundred ninety-one".