1521114540017 has 2 divisors, whose sum is σ = 1521114540018. Its totient is φ = 1521114540016.

The previous prime is 1521114540013. The next prime is 1521114540047. The reversal of 1521114540017 is 7100454111251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1471779022561 + 49335517456 = 1213169^2 + 222116^2 .

It is an emirp because it is prime and its reverse (7100454111251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1521114540017 - 2² = 1521114540013 is a prime.

It is a super-2 number, since 2×1521114540017² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1521114540013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 760557270008 + 760557270009.

It is an arithmetic number, because the mean of its divisors is an integer number (760557270009).

Almost surely, 2^{1521114540017} is an apocalyptic number.

It is an amenable number.

1521114540017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1521114540017 is an equidigital number, since it uses as much as digits as its factorization.

1521114540017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 32.

Adding to 1521114540017 its reverse (7100454111251), we get a palindrome (8621568651268).

The spelling of 1521114540017 in words is "one trillion, five hundred twenty-one billion, one hundred fourteen million, five hundred forty thousand, seventeen".