241540161267557 has 2 divisors, whose sum is σ = 241540161267558. Its totient is φ = 241540161267556.

The previous prime is 241540161267551. The next prime is 241540161267703. The reversal of 241540161267557 is 755762161045142.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183722599733761 + 57817561533796 = 13554431^2 + 7603786^2 .

It is a cyclic number.

It is not a de Polignac number, because 241540161267557 - 2¹⁸ = 241540161005413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241540161267551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120770080633778 + 120770080633779.

It is an arithmetic number, because the mean of its divisors is an integer number (120770080633779).

Almost surely, 2^{241540161267557} is an apocalyptic number.

It is an amenable number.

241540161267557 is a deficient number, since it is larger than the sum of its proper divisors (1).

241540161267557 is an equidigital number, since it uses as much as digits as its factorization.

241540161267557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112000, while the sum is 56.

The spelling of 241540161267557 in words is "two hundred forty-one trillion, five hundred forty billion, one hundred sixty-one million, two hundred sixty-seven thousand, five hundred fifty-seven".