126189065441 has 2 divisors, whose sum is σ = 126189065442. Its totient is φ = 126189065440.

The previous prime is 126189065389. The next prime is 126189065449. The reversal of 126189065441 is 144560981621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106017964816 + 20171100625 = 325604^2 + 142025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126189065441 is a prime.

It is not a weakly prime, because it can be changed into another prime (126189065449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63094532720 + 63094532721.

It is an arithmetic number, because the mean of its divisors is an integer number (63094532721).

Almost surely, 2^126189065441 is an apocalyptic number.

It is an amenable number.

126189065441 is a deficient number, since it is larger than the sum of its proper divisors (1).

126189065441 is an equidigital number, since it uses as much as digits as its factorization.

126189065441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 126189065441 in words is "one hundred twenty-six billion, one hundred eighty-nine million, sixty-five thousand, four hundred forty-one".