1261760054141 has 2 divisors, whose sum is σ = 1261760054142. Its totient is φ = 1261760054140.

The previous prime is 1261760054123. The next prime is 1261760054171. The reversal of 1261760054141 is 1414500671621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 826364630116 + 435395424025 = 909046^2 + 659845^2 .

It is a cyclic number.

It is not a de Polignac number, because 1261760054141 - 2⁶ = 1261760054077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1261760054095 and 1261760054104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1261760054171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630880027070 + 630880027071.

It is an arithmetic number, because the mean of its divisors is an integer number (630880027071).

Almost surely, 2^{1261760054141} is an apocalyptic number.

It is an amenable number.

1261760054141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1261760054141 is an equidigital number, since it uses as much as digits as its factorization.

1261760054141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 1261760054141 in words is "one trillion, two hundred sixty-one billion, seven hundred sixty million, fifty-four thousand, one hundred forty-one".