1532605816913 has 2 divisors, whose sum is σ = 1532605816914. Its totient is φ = 1532605816912.

The previous prime is 1532605816883. The next prime is 1532605816927. The reversal of 1532605816913 is 3196185062351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 931906414609 + 600699402304 = 965353^2 + 775048^2 .

It is an emirp because it is prime and its reverse (3196185062351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1532605816913 - 2¹² = 1532605812817 is a prime.

It is not a weakly prime, because it can be changed into another prime (1532605816943) 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, 766302908456 + 766302908457.

It is an arithmetic number, because the mean of its divisors is an integer number (766302908457).

Almost surely, 2^{1532605816913} is an apocalyptic number.

It is an amenable number.

1532605816913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1532605816913 is an equidigital number, since it uses as much as digits as its factorization.

1532605816913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The spelling of 1532605816913 in words is "one trillion, five hundred thirty-two billion, six hundred five million, eight hundred sixteen thousand, nine hundred thirteen".