125945728 has 16 divisors (see below), whose sum is σ = 250907760. Its totient is φ = 62972800.

The previous prime is 125945719. The next prime is 125945747. The reversal of 125945728 is 827549521.

It is a tau number, because it is divible by the number of its divisors (16).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491848 + ... + 492103.

It is an arithmetic number, because the mean of its divisors is an integer number (15681735).

Almost surely, 2^125945728 is an apocalyptic number.

It is an amenable number.

125945728 is a deficient number, since it is larger than the sum of its proper divisors (124962032).

125945728 is an frugal number, since it uses more digits than its factorization.

125945728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983965 (or 983953 counting only the distinct ones).

The product of its digits is 201600, while the sum is 43.

The square root of 125945728 is about 11222.5544329266. The cubic root of 125945728 is about 501.2578038723.

The spelling of 125945728 in words is "one hundred twenty-five million, nine hundred forty-five thousand, seven hundred twenty-eight".