1455645543193 has 2 divisors, whose sum is σ = 1455645543194. Its totient is φ = 1455645543192.

The previous prime is 1455645543173. The next prime is 1455645543221. The reversal of 1455645543193 is 3913455465541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1101653862409 + 353991680784 = 1049597^2 + 594972^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1455645543193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1455645543173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727822771596 + 727822771597.

It is an arithmetic number, because the mean of its divisors is an integer number (727822771597).

Almost surely, 2^{1455645543193} is an apocalyptic number.

It is an amenable number.

1455645543193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1455645543193 is an equidigital number, since it uses as much as digits as its factorization.

1455645543193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440000, while the sum is 55.

The spelling of 1455645543193 in words is "one trillion, four hundred fifty-five billion, six hundred forty-five million, five hundred forty-three thousand, one hundred ninety-three".