125801113457 has 2 divisors, whose sum is σ = 125801113458. Its totient is φ = 125801113456.

The previous prime is 125801113447. The next prime is 125801113469. The reversal of 125801113457 is 754311108521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125610701056 + 190412401 = 354416^2 + 13799^2 .

It is a cyclic number.

It is not a de Polignac number, because 125801113457 - 2⁶ = 125801113393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125801113457.

It is not a weakly prime, because it can be changed into another prime (125801113447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62900556728 + 62900556729.

It is an arithmetic number, because the mean of its divisors is an integer number (62900556729).

Almost surely, 2^125801113457 is an apocalyptic number.

It is an amenable number.

125801113457 is a deficient number, since it is larger than the sum of its proper divisors (1).

125801113457 is an equidigital number, since it uses as much as digits as its factorization.

125801113457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 38.

The spelling of 125801113457 in words is "one hundred twenty-five billion, eight hundred one million, one hundred thirteen thousand, four hundred fifty-seven".