125709568 has 36 divisors (see below), whose sum is σ = 252407428. Its totient is φ = 62484480.

The previous prime is 125709541. The next prime is 125709581. The reversal of 125709568 is 865907521.

It can be written as a sum of positive squares in 2 ways, for example, as 62220544 + 63489024 = 7888^2 + 7968^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44980 + ... + 47692.

Almost surely, 2^125709568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125709568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126203714).

125709568 is an abundant number, since it is smaller than the sum of its proper divisors (126697860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125709568 is an equidigital number, since it uses as much as digits as its factorization.

125709568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2910 (or 2896 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 125709568 is about 11212.0278272933. The cubic root of 125709568 is about 500.9443061159.

The spelling of 125709568 in words is "one hundred twenty-five million, seven hundred nine thousand, five hundred sixty-eight".