1205454525029 has 2 divisors, whose sum is σ = 1205454525030. Its totient is φ = 1205454525028.

The previous prime is 1205454525013. The next prime is 1205454525047. The reversal of 1205454525029 is 9205254545021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1184897560900 + 20556964129 = 1088530^2 + 143377^2 .

It is a cyclic number.

It is not a de Polignac number, because 1205454525029 - 2⁴ = 1205454525013 is a prime.

It is a super-2 number, since 2×1205454525029² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1205454525059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602727262514 + 602727262515.

It is an arithmetic number, because the mean of its divisors is an integer number (602727262515).

Almost surely, 2^{1205454525029} is an apocalyptic number.

It is an amenable number.

1205454525029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1205454525029 is an equidigital number, since it uses as much as digits as its factorization.

1205454525029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720000, while the sum is 44.

The spelling of 1205454525029 in words is "one trillion, two hundred five billion, four hundred fifty-four million, five hundred twenty-five thousand, twenty-nine".