1128250 has 16 divisors (see below), whose sum is σ = 2112552. Its totient is φ = 451200.

The previous prime is 1128247. The next prime is 1128251. The reversal of 1128250 is 528211.

It can be written as a sum of positive squares in 4 ways, for example, as 40401 + 1087849 = 201^2 + 1043^2 .

It is not an unprimeable number, because it can be changed into a prime (1128251) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 2007 + ... + 2506.

2^1128250 is an apocalyptic number.

1128250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1128250 is a deficient number, since it is larger than the sum of its proper divisors (984302).

1128250 is an equidigital number, since it uses as much as digits as its factorization.

1128250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4530 (or 4520 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1128250 is about 1062.1911315766. The cubic root of 1128250 is about 104.1042470483.

It can be divided in two parts, 1128 and 250, that added together give a triangular number (1378 = T₅₂).

The spelling of 1128250 in words is "one million, one hundred twenty-eight thousand, two hundred fifty".