1125728 has 24 divisors (see below), whose sum is σ = 2241792. Its totient is φ = 556416.

The previous prime is 1125713. The next prime is 1125739. The reversal of 1125728 is 8275211.

It is a junction number, because it is equal to n+sod(n) for n = 1125697 and 1125706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3926 + ... + 4202.

It is an arithmetic number, because the mean of its divisors is an integer number (93408).

2^1125728 is an apocalyptic number.

It is an amenable number.

1125728 is a deficient number, since it is larger than the sum of its proper divisors (1116064).

1125728 is a wasteful number, since it uses less digits than its factorization.

1125728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414 (or 406 counting only the distinct ones).

The product of its digits is 1120, while the sum is 26.

The square root of 1125728 is about 1061.0032987696. The cubic root of 1125728 is about 104.0266204045.

The spelling of 1125728 in words is "one million, one hundred twenty-five thousand, seven hundred twenty-eight".