1205454525047 has 2 divisors, whose sum is σ = 1205454525048. Its totient is φ = 1205454525046.

The previous prime is 1205454525029. The next prime is 1205454525059. The reversal of 1205454525047 is 7405254545021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1205454525047 - 2¹⁰ = 1205454524023 is a prime.

It is a super-2 number, since 2×1205454525047² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1205454524989 and 1205454525007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1205454575047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602727262523 + 602727262524.

It is an arithmetic number, because the mean of its divisors is an integer number (602727262524).

Almost surely, 2^{1205454525047} is an apocalyptic number.

1205454525047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1205454525047 is an equidigital number, since it uses as much as digits as its factorization.

1205454525047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120000, while the sum is 44.

The spelling of 1205454525047 in words is "one trillion, two hundred five billion, four hundred fifty-four million, five hundred twenty-five thousand, forty-seven".