125040872332861 has 2 divisors, whose sum is σ = 125040872332862. Its totient is φ = 125040872332860.

The previous prime is 125040872332853. The next prime is 125040872332879. The reversal of 125040872332861 is 168233278040521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113886568215225 + 11154304117636 = 10671765^2 + 3339806^2 .

It is a cyclic number.

It is not a de Polignac number, because 125040872332861 - 2³ = 125040872332853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125040872332799 and 125040872332808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125040872332841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62520436166430 + 62520436166431.

It is an arithmetic number, because the mean of its divisors is an integer number (62520436166431).

Almost surely, 2^{125040872332861} is an apocalyptic number.

It is an amenable number.

125040872332861 is a deficient number, since it is larger than the sum of its proper divisors (1).

125040872332861 is an equidigital number, since it uses as much as digits as its factorization.

125040872332861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 125040872332861 in words is "one hundred twenty-five trillion, forty billion, eight hundred seventy-two million, three hundred thirty-two thousand, eight hundred sixty-one".