125728312 has 32 divisors (see below), whose sum is σ = 244149120. Its totient is φ = 60635520.

The previous prime is 125728307. The next prime is 125728319. The reversal of 125728312 is 213827521.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125728319) 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 7 ways as a sum of consecutive naturals, for example, 97818 + ... + 99094.

It is an arithmetic number, because the mean of its divisors is an integer number (7629660).

Almost surely, 2^125728312 is an apocalyptic number.

It is an amenable number.

125728312 is a deficient number, since it is larger than the sum of its proper divisors (118420808).

125728312 is a wasteful number, since it uses less digits than its factorization.

125728312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711 (or 1707 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 125728312 is about 11212.8636841799. The cubic root of 125728312 is about 500.9692027448.

The spelling of 125728312 in words is "one hundred twenty-five million, seven hundred twenty-eight thousand, three hundred twelve".