125073945917 has 2 divisors, whose sum is σ = 125073945918. Its totient is φ = 125073945916.

The previous prime is 125073945907. The next prime is 125073945947. The reversal of 125073945917 is 719549370521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81918453796 + 43155492121 = 286214^2 + 207739^2 .

It is a cyclic number.

It is not a de Polignac number, because 125073945917 - 2⁶ = 125073945853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125073945907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62536972958 + 62536972959.

It is an arithmetic number, because the mean of its divisors is an integer number (62536972959).

Almost surely, 2^125073945917 is an apocalyptic number.

It is an amenable number.

125073945917 is a deficient number, since it is larger than the sum of its proper divisors (1).

125073945917 is an equidigital number, since it uses as much as digits as its factorization.

125073945917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2381400, while the sum is 53.

The spelling of 125073945917 in words is "one hundred twenty-five billion, seventy-three million, nine hundred forty-five thousand, nine hundred seventeen".