125448587713 has 4 divisors (see below), whose sum is σ = 132827916420. Its totient is φ = 118069259008.

The previous prime is 125448587711. The next prime is 125448587723. The reversal of 125448587713 is 317785844521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 317785844521 = 13417 ⋅23685313.

It can be written as a sum of positive squares in 2 ways, for example, as 91411289649 + 34037298064 = 302343^2 + 184492^2 .

It is a cyclic number.

It is not a de Polignac number, because 125448587713 - 2¹ = 125448587711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125448587711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3689664328 + ... + 3689664361.

It is an arithmetic number, because the mean of its divisors is an integer number (33206979105).

Almost surely, 2^125448587713 is an apocalyptic number.

It is an amenable number.

125448587713 is a deficient number, since it is larger than the sum of its proper divisors (7379328707).

125448587713 is an equidigital number, since it uses as much as digits as its factorization.

125448587713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7379328706.

The product of its digits is 7526400, while the sum is 55.

The spelling of 125448587713 in words is "one hundred twenty-five billion, four hundred forty-eight million, five hundred eighty-seven thousand, seven hundred thirteen".