1288242954161 has 2 divisors, whose sum is σ = 1288242954162. Its totient is φ = 1288242954160.

The previous prime is 1288242954127. The next prime is 1288242954169. The reversal of 1288242954161 is 1614592428821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1284266895025 + 3976059136 = 1133255^2 + 63056^2 .

It is a cyclic number.

It is not a de Polignac number, because 1288242954161 - 2¹⁸ = 1288242692017 is a prime.

It is not a weakly prime, because it can be changed into another prime (1288242954169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 644121477080 + 644121477081.

It is an arithmetic number, because the mean of its divisors is an integer number (644121477081).

Almost surely, 2^{1288242954161} is an apocalyptic number.

It is an amenable number.

1288242954161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1288242954161 is an equidigital number, since it uses as much as digits as its factorization.

1288242954161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2211840, while the sum is 53.

The spelling of 1288242954161 in words is "one trillion, two hundred eighty-eight billion, two hundred forty-two million, nine hundred fifty-four thousand, one hundred sixty-one".